Attachment 418204 Details for Bug 220364 – Patch

[patch] Patch

bug-220364-20210122181310.patch (text/plain), 192.72 KB, created by Yusuke Suzuki on 2021-01-22 18:13:10 PST

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Filename:

MIME Type:

Creator: Yusuke Suzuki

Created: 2021-01-22 18:13:10 PST

Size: 192.72 KB

patch

obsolete

>Subversion Revision: 271771
>diff --git a/Source/JavaScriptCore/ChangeLog b/Source/JavaScriptCore/ChangeLog
>index c1924b254e438f9dff549141d4810305ff5d3aef..45a0784deee01876c8607117d844feb69a9be2d5 100644
>--- a/Source/JavaScriptCore/ChangeLog
>+++ b/Source/JavaScriptCore/ChangeLog
>@@ -1,3 +1,15 @@
>+2021-01-22  Yusuke Suzuki  <ysuzuki@apple.com>
>+
>+        Should SharedArrayBuffer/WebAssembly.Memory really throw?
>+        https://bugs.webkit.org/show_bug.cgi?id=220364
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Not accessing "shared" field if Options::useSharedArrayBuffer() is false.
>+
>+        * wasm/js/WebAssemblyMemoryConstructor.cpp:
>+        (JSC::JSC_DEFINE_HOST_FUNCTION):
>+
> 2021-01-22  Keith Miller  <keith_miller@apple.com>
> 
>         Obj-C API should do correct type checks when using a 32-bit address space
>diff --git a/Source/JavaScriptCore/wasm/js/WebAssemblyMemoryConstructor.cpp b/Source/JavaScriptCore/wasm/js/WebAssemblyMemoryConstructor.cpp
>index 847ea8d36f13c8228913bea4c16b5d3bc7da8b68..fd9b0632c11226200abfd68e45fdae2d96bd9ac8 100644
>--- a/Source/JavaScriptCore/wasm/js/WebAssemblyMemoryConstructor.cpp
>+++ b/Source/JavaScriptCore/wasm/js/WebAssemblyMemoryConstructor.cpp
>@@ -117,16 +117,16 @@ JSC_DEFINE_HOST_FUNCTION(constructJSWebAssemblyMemory, (JSGlobalObject* globalOb
>     }
> 
>     Wasm::MemorySharingMode sharingMode = Wasm::MemorySharingMode::Default;
>-    JSValue sharedValue = memoryDescriptor->get(globalObject, Identifier::fromString(vm, "shared"));
>-    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
>-    bool shared = sharedValue.toBoolean(globalObject);
>-    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
>-    if (shared) {
>-        if (!maximumPageCount)
>-            return throwVMTypeError(globalObject, throwScope, "'maximum' page count must be defined if 'shared' is true"_s);
>-        if (!Options::useSharedArrayBuffer())
>-            return throwVMTypeError(globalObject, throwScope, "Shared WebAssembly.Memory and SharedArrayBuffer are not enabled"_s);
>-        sharingMode = Wasm::MemorySharingMode::Shared;
>+    if (Options::useSharedArrayBuffer()) {
>+        JSValue sharedValue = memoryDescriptor->get(globalObject, Identifier::fromString(vm, "shared"));
>+        RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
>+        bool shared = sharedValue.toBoolean(globalObject);
>+        RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
>+        if (shared) {
>+            if (!maximumPageCount)
>+                return throwVMTypeError(globalObject, throwScope, "'maximum' page count must be defined if 'shared' is true"_s);
>+            sharingMode = Wasm::MemorySharingMode::Shared;
>+        }
>     }
> 
>     auto* jsMemory = JSWebAssemblyMemory::tryCreate(globalObject, vm, webAssemblyMemoryStructure);
>diff --git a/LayoutTests/imported/w3c/ChangeLog b/LayoutTests/imported/w3c/ChangeLog
>index 568b06404e5bfb7748c55e2e9b1acad16761d5f4..68ab690ec21e02483bfffa0d2047550384f12c97 100644
>--- a/LayoutTests/imported/w3c/ChangeLog
>+++ b/LayoutTests/imported/w3c/ChangeLog
>@@ -1,3 +1,161 @@
>+2021-01-22  Yusuke Suzuki  <ysuzuki@apple.com>
>+
>+        Should SharedArrayBuffer/WebAssembly.Memory really throw?
>+        https://bugs.webkit.org/show_bug.cgi?id=220364
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        To update wasm/ and common/sab.js, import wasm and common updates.
>+
>+        * resources/import-expectations.json:
>+        * web-platform-tests/common/__init__.py: Added.
>+        * web-platform-tests/common/echo.py:
>+        (main):
>+        * web-platform-tests/common/get-host-info.sub.js:
>+        (get_host_info):
>+        * web-platform-tests/common/redirect-opt-in.py:
>+        (main):
>+        * web-platform-tests/common/sab.js:
>+        (const.createBuffer):
>+        * web-platform-tests/common/security-features/README.md:
>+        * web-platform-tests/common/security-features/__init__.py: Added.
>+        * web-platform-tests/common/security-features/scope/__init__.py: Added.
>+        * web-platform-tests/common/security-features/scope/document.py:
>+        (main):
>+        * web-platform-tests/common/security-features/scope/util.py:
>+        (get_template):
>+        (__noop):
>+        (respond):
>+        * web-platform-tests/common/security-features/scope/w3c-import.log:
>+        * web-platform-tests/common/security-features/scope/worker.py:
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/audio.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/document.py:
>+        (generate_payload):
>+        * web-platform-tests/common/security-features/subresource/empty.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/font.py:
>+        (decodebytes):
>+        (generate_payload):
>+        (generate_report_headers_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/image.py:
>+        (Image.save):
>+        (encode_string_as_bmp_image):
>+        (generate_payload):
>+        (generate_report_headers_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/referrer.py:
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/script.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/shared-worker.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/static-import.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/stylesheet.py:
>+        (generate_payload):
>+        (generate_import_rule):
>+        (generate_report_headers_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/subresource.py:
>+        (get_template):
>+        (redirect):
>+        (__get_swapped_origin_netloc):
>+        (create_url):
>+        (preprocess_redirection):
>+        (preprocess_stash_action):
>+        (__noop):
>+        (respond):
>+        * web-platform-tests/common/security-features/subresource/svg.py:
>+        (generate_payload):
>+        (generate_payload_embedded):
>+        (generate_report_headers_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/video.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/worker.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/subresource/xhr.py:
>+        (generate_payload):
>+        (main):
>+        * web-platform-tests/common/security-features/w3c-import.log:
>+        * web-platform-tests/common/slow.py:
>+        (main):
>+        * web-platform-tests/common/square.png: Added.
>+        * web-platform-tests/common/stringifiers.js:
>+        * web-platform-tests/common/w3c-import.log:
>+        * web-platform-tests/wasm/jsapi/META.yml: Added.
>+        * web-platform-tests/wasm/jsapi/constructor/instantiate.any-expected.txt:
>+        * web-platform-tests/wasm/jsapi/constructor/instantiate.any.worker-expected.txt:
>+        * web-platform-tests/wasm/jsapi/global/type.tentative.any-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/global/type.tentative.any.html: Added.
>+        * web-platform-tests/wasm/jsapi/global/type.tentative.any.js: Added.
>+        (assert_type):
>+        (test):
>+        (string_appeared_here.test):
>+        * web-platform-tests/wasm/jsapi/global/type.tentative.any.worker-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/global/type.tentative.any.worker.html: Added.
>+        * web-platform-tests/wasm/jsapi/global/w3c-import.log:
>+        * web-platform-tests/wasm/jsapi/instance/constructor.any-expected.txt:
>+        * web-platform-tests/wasm/jsapi/instance/constructor.any.worker-expected.txt:
>+        * web-platform-tests/wasm/jsapi/instanceTestFactory.js:
>+        (const.imports.string_appeared_here.string_appeared_here):
>+        (return.verify):
>+        * web-platform-tests/wasm/jsapi/memory/type.tentative.any-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/memory/type.tentative.any.html: Added.
>+        * web-platform-tests/wasm/jsapi/memory/type.tentative.any.js: Added.
>+        (assert_type):
>+        (test):
>+        * web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker.html: Added.
>+        * web-platform-tests/wasm/jsapi/memory/w3c-import.log:
>+        * web-platform-tests/wasm/jsapi/module/exports.any-expected.txt:
>+        * web-platform-tests/wasm/jsapi/module/exports.any.js:
>+        (test):
>+        * web-platform-tests/wasm/jsapi/module/exports.any.worker-expected.txt:
>+        * web-platform-tests/wasm/jsapi/module/imports.any-expected.txt:
>+        * web-platform-tests/wasm/jsapi/module/imports.any.js:
>+        (test):
>+        * web-platform-tests/wasm/jsapi/module/imports.any.worker-expected.txt:
>+        * web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.html: Added.
>+        * web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.js: Added.
>+        (test):
>+        * web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker.html: Added.
>+        * web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.html: Added.
>+        * web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.js: Added.
>+        (test):
>+        * web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker-expected.txt: Added.
>+        * web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker.html: Added.
>+        * web-platform-tests/wasm/jsapi/table/w3c-import.log:
>+        * web-platform-tests/wasm/jsapi/w3c-import.log:
>+        * web-platform-tests/wasm/webapi/META.yml: Added.
>+        * web-platform-tests/wasm/webapi/instantiateStreaming.any-expected.txt:
>+        * web-platform-tests/wasm/webapi/instantiateStreaming.any.worker-expected.txt:
>+        * web-platform-tests/wasm/webapi/invalid-code.any-expected.txt:
>+        * web-platform-tests/wasm/webapi/invalid-code.any.js:
>+        (string_appeared_here.Invalid.code):
>+        * web-platform-tests/wasm/webapi/invalid-code.any.worker-expected.txt:
>+        * web-platform-tests/wasm/webapi/modified-contenttype.any-expected.txt: Added.
>+        * web-platform-tests/wasm/webapi/modified-contenttype.any.html: Added.
>+        * web-platform-tests/wasm/webapi/modified-contenttype.any.js: Added.
>+        (string_appeared_here.forEach.method.promise_test.async t):
>+        (string_appeared_here.forEach.method.with.Content.Type.set late):
>+        * web-platform-tests/wasm/webapi/modified-contenttype.any.worker-expected.txt: Added.
>+        * web-platform-tests/wasm/webapi/modified-contenttype.any.worker.html: Added.
>+        * web-platform-tests/wasm/webapi/w3c-import.log:
>+
> 2021-01-22  Devin Rousso  <drousso@apple.com>
> 
>         [WPT] [Payment Request] slight adjustment to payment-request/payment-request-constructor-thcrash.https.html
>diff --git a/LayoutTests/imported/w3c/resources/import-expectations.json b/LayoutTests/imported/w3c/resources/import-expectations.json
>index 5f4c821fd585dbc56684d589877d6cce55080392..ec35da56d3955252613b794e605af62eb82b6bd0 100644
>--- a/LayoutTests/imported/w3c/resources/import-expectations.json
>+++ b/LayoutTests/imported/w3c/resources/import-expectations.json
>@@ -1,446 +1,446 @@
> {
>-    "LayoutTests/imported/w3c/web-platform-tests/css/css-sizing/aspect-ratio": "import",
>-    "LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/the-img-element/": "import",
>-    "apng": "import",
>-    "css/css-animations": "import",
>-    "css/css-box": "import",
>-    "css/css-color": "import",
>-    "css/css-flexbox": "import",
>-    "css/css-masking/clip-path/": "import",
>-    "css/css-masking/clip-path/clip-path-with-zoo": "import",
>-    "css/css-masking/clip-path/clip-path-with-zoom*": "import",
>-    "css/css-masking/clip-path/clip-path-with-zoom-*": "import",
>-    "css/css-multicol": "import",
>-    "css/css-position": "import",
>-    "css/css-shapes": "import",
>-    "css/css-sizing": "import",
>-    "css/css-syntax": "import",
>-    "css/css-text-decor": "import",
>-    "css/css-values": "import",
>-    "css/geometry": "import",
>-    "css/selectors": "import",
>-    "css/support": "import",
>-    "custom-elements": "import",
>-    "density-size-correction": "import",
>-    "encrypted-media": "import",
>-    "imported/w3c/web-platform-tests/css/css-sizing/aspect-ratio": "import",
>-    "paint-timing/": "import",
>-    "paint-timing/fcp-only": "import",
>-    "paint-timing/resources": "import",
>-    "paint-timing/resources/": "import",
>-    "resources/testharness.js": "import",
>-    "shadow-dom": "import",
>-    "streams": "import",
>-    "tools": "import",
>-    "web-animations": "import",
>-    "web-platform-tests/DOM-parsing": "skip",
>-    "web-platform-tests/DOMEvents": "skip",
>-    "web-platform-tests/FileAPI": "import",
>-    "web-platform-tests/IndexedDB": "import",
>-    "web-platform-tests/WebCryptoAPI": "import",
>-    "web-platform-tests/WebIDL": "import",
>-    "web-platform-tests/WebIDL/invalid": "skip",
>-    "web-platform-tests/WebIDL/valid": "skip",
>-    "web-platform-tests/XMLHttpRequest": "import",
>-    "web-platform-tests/XMLHttpRequest/abort-after-stop.htm": "skip",
>-    "web-platform-tests/XMLHttpRequest/event-error-order.sub.html": "skip",
>-    "web-platform-tests/XMLHttpRequest/event-timeout-order.htm": "skip",
>-    "web-platform-tests/XMLHttpRequest/preserve-ua-header-on-redirect.htm": "skip",
>-    "web-platform-tests/XMLHttpRequest/send-after-setting-document-domain.htm": "skip",
>-    "web-platform-tests/XMLHttpRequest/send-authentication-basic-cors-not-enabled.htm": "skip",
>-    "web-platform-tests/XMLHttpRequest/send-authentication-basic-setrequestheader-existing-session.htm": "skip",
>-    "web-platform-tests/accelerometer": "skip",
>-    "web-platform-tests/ambient-light": "skip",
>-    "web-platform-tests/animation-timing": "skip",
>-    "web-platform-tests/annotation-model": "skip",
>-    "web-platform-tests/annotation-protocol": "skip",
>-    "web-platform-tests/annotation-vocab": "skip",
>-    "web-platform-tests/apng": "skip",
>-    "web-platform-tests/app-uri": "skip",
>-    "web-platform-tests/assumptions": "skip",
>-    "web-platform-tests/audio-output": "import",
>-    "web-platform-tests/auxclick": "skip",
>-    "web-platform-tests/background-fetch": "import",
>-    "web-platform-tests/battery-status": "skip",
>-    "web-platform-tests/beacon": "import",
>-    "web-platform-tests/bluetooth": "skip",
>-    "web-platform-tests/browser-payment-api": "skip",
>-    "web-platform-tests/clear-site-data": "skip",
>-    "web-platform-tests/clipboard": "skip",
>-    "web-platform-tests/clipboard-apis": "import",
>-    "web-platform-tests/common": "import",
>-    "web-platform-tests/compat": "import",
>-    "web-platform-tests/console": "import",
>-    "web-platform-tests/content-security-policy": "import",
>-    "web-platform-tests/cookies": "skip",
>-    "web-platform-tests/cookies/resources": "import",
>-    "web-platform-tests/cookies/secure": "import",
>-    "web-platform-tests/core-aam": "skip",
>-    "web-platform-tests/cors": "import",
>-    "web-platform-tests/credential-management": "import",
>-    "web-platform-tests/css": "skip",
>-    "web-platform-tests/css-backgrounds": "skip",
>-    "web-platform-tests/css-font-display": "skip",
>-    "web-platform-tests/css-font-loading": "skip",
>-    "web-platform-tests/css-fonts": "skip",
>-    "web-platform-tests/css-paint-api": "skip",
>-    "web-platform-tests/css-scoping": "skip",
>-    "web-platform-tests/css-scroll-anchoring": "skip",
>-    "web-platform-tests/css-timing": "skip",
>-    "web-platform-tests/css-typed-om": "skip",
>-    "web-platform-tests/css-values": "skip",
>-    "web-platform-tests/css/WOFF2": "import",
>-    "web-platform-tests/css/css-align": "import",
>-    "web-platform-tests/css/css-animations": "import",
>-    "web-platform-tests/css/css-animations/": "import",
>-    "web-platform-tests/css/css-backgrounds": "import",
>-    "web-platform-tests/css/css-cascade": "import",
>-    "web-platform-tests/css/css-color": "import",
>-    "web-platform-tests/css/css-content": "import",
>-    "web-platform-tests/css/css-display": "import",
>-    "web-platform-tests/css/css-easing": "import",
>-    "web-platform-tests/css/css-flexbox": "import",
>-    "web-platform-tests/css/css-font-loading": "import",
>-    "web-platform-tests/css/css-fonts": "import",
>-    "web-platform-tests/css/css-fonts/math-script-level-and-math-style/": "import",
>-    "web-platform-tests/css/css-grid": "import",
>-    "web-platform-tests/css/css-grid/abspos": "import",
>-    "web-platform-tests/css/css-grid/alignment/": "import",
>-    "web-platform-tests/css/css-grid/grid-definition/": "import",
>-    "web-platform-tests/css/css-grid/grid-items/": "import",
>-    "web-platform-tests/css/css-grid/layout-algorithm": "import",
>-    "web-platform-tests/css/css-grid/layout-algorithm/": "import",
>-    "web-platform-tests/css/css-grid/parsing/": "import",
>-    "web-platform-tests/css/css-images": "import",
>-    "web-platform-tests/css/css-lists": "import",
>-    "web-platform-tests/css/css-lists/parsing": "import",
>-    "web-platform-tests/css/css-logical": "import",
>-    "web-platform-tests/css/css-multicol": "import",
>-    "web-platform-tests/css/css-overflow": "import",
>-    "web-platform-tests/css/css-overscroll-behavior": "import",
>-    "web-platform-tests/css/css-properties-values-api": "import",
>-    "web-platform-tests/css/css-pseudo": "import",
>-    "web-platform-tests/css/css-scoping": "import",
>-    "web-platform-tests/css/css-scroll-snap": "import",
>-    "web-platform-tests/css/css-shadow-parts": "import",
>-    "web-platform-tests/css/css-shapes": "import",
>-    "web-platform-tests/css/css-shapes/test-plan/index.html": "skip",
>-    "web-platform-tests/css/css-sizing/aspect-ratio": "import",
>-    "web-platform-tests/css/css-text": "import",
>-    "web-platform-tests/css/css-transitions": "import",
>-    "web-platform-tests/css/css-ui": "import",
>-    "web-platform-tests/css/css-variables": "import",
>-    "web-platform-tests/css/css-writing-modes": "import",
>-    "web-platform-tests/css/cssom": "import",
>-    "web-platform-tests/css/cssom-view/": "import",
>-    "web-platform-tests/css/geometry/": "import",
>-    "web-platform-tests/css/mediaqueries": "import",
>-    "web-platform-tests/css/reference": "import",
>-    "web-platform-tests/css/resources": "import",
>-    "web-platform-tests/css/selectors": "import",
>-    "web-platform-tests/css/support": "import",
>-    "web-platform-tests/custom-elements": "import",
>-    "web-platform-tests/custom-elements/v0": "skip",
>-    "web-platform-tests/docs": "import",
>-    "web-platform-tests/dom": "import",
>-    "web-platform-tests/dom/events": "import",
>-    "web-platform-tests/dom/events/scrolling": "import",
>-    "web-platform-tests/dom/nodes/Document-createElement-namespace-tests/empty.html": "skip",
>-    "web-platform-tests/dom/nodes/Document-createElement-namespace-tests/empty.svg": "skip",
>-    "web-platform-tests/dom/nodes/Document-createElement-namespace-tests/empty.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Document-createElement-namespace-tests/empty.xml": "skip",
>-    "web-platform-tests/dom/nodes/Document-createProcessingInstruction.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Document-getElementsByTagName.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElement-null-svg.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElement-null.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElement-null.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-dynamic-add-svg.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-dynamic-add.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-dynamic-remove-svg.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-dynamic-remove.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-dynamic-remove.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-nochild-svg.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-nochild.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount-svg.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-childElementCount.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Element-firstElementChild-entity.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-firstElementChild-entity.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Element-firstElementChild-namespace-svg.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-firstElementChild-namespace.svg": "skip",
>-    "web-platform-tests/dom/nodes/Element-firstElementChild-namespace.xhtml": "skip",
>-    "web-platform-tests/dom/nodes/Element-firstElementChild-svg.svg": "skip",
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>+    "web-platform-tests/tools": "import", 
>+    "web-platform-tests/tools/__init__.py": "import", 
>+    "web-platform-tests/tools/html5lib": "import", 
>+    "web-platform-tests/tools/localpaths.py": "import", 
>+    "web-platform-tests/tools/manifest": "import", 
>+    "web-platform-tests/tools/pywebsocket": "import", 
>+    "web-platform-tests/tools/serve": "import", 
>+    "web-platform-tests/tools/six": "import", 
>+    "web-platform-tests/tools/sslutils": "import", 
>+    "web-platform-tests/tools/wptserve": "import", 
>+    "web-platform-tests/touch-events": "import", 
>+    "web-platform-tests/trusted-types": "skip", 
>+    "web-platform-tests/typedarrays": "skip", 
>+    "web-platform-tests/uievents": "import", 
>+    "web-platform-tests/upgrade-insecure-requests": "skip", 
>+    "web-platform-tests/url": "import", 
>+    "web-platform-tests/user-timing": "import", 
>+    "web-platform-tests/vibration": "skip", 
>+    "web-platform-tests/visual-viewport": "import", 
>+    "web-platform-tests/wai-aria": "skip", 
>+    "web-platform-tests/wasm": "import", 
>+    "web-platform-tests/wasm/jsapi": "import", 
>+    "web-platform-tests/web-animations": "import", 
>+    "web-platform-tests/web-nfc": "skip", 
>+    "web-platform-tests/web-share": "import", 
>+    "web-platform-tests/webaudio": "import", 
>+    "web-platform-tests/webauthn": "skip", 
>+    "web-platform-tests/webdriver": "skip", 
>+    "web-platform-tests/webgl": "skip", 
>+    "web-platform-tests/webmessaging": "import", 
>+    "web-platform-tests/webmessaging/": "import", 
>+    "web-platform-tests/webrtc": "import", 
>+    "web-platform-tests/webrtc/legacy": "skip", 
>+    "web-platform-tests/websockets": "import", 
>+    "web-platform-tests/webstorage": "skip", 
>+    "web-platform-tests/webusb": "skip", 
>+    "web-platform-tests/webvr": "skip", 
>+    "web-platform-tests/webvtt": "skip", 
>+    "web-platform-tests/webxr": "import", 
>+    "web-platform-tests/workers": "import", 
>+    "web-platform-tests/worklets": "import", 
>+    "web-platform-tests/x-frame-options": "skip", 
>+    "web-platform-tests/xhr": "import", 
>     "web-platform/test/html/infrastructure": "import"
> }
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/__init__.py b/LayoutTests/imported/w3c/web-platform-tests/common/__init__.py
>new file mode 100644
>index 0000000000000000000000000000000000000000..a6834b8285a56bef0e1543fd901c7e6f2f8bc202
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/__init__.py
>@@ -0,0 +1 @@
>+# This file is required for Python to search this directory for modules.
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/echo.py b/LayoutTests/imported/w3c/web-platform-tests/common/echo.py
>index 2ee403645b1bb27cdb27bcea716e166729b81af8..911b54a0b488b9c148a29d5d1cd942d4fbca57b4 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/echo.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/echo.py
>@@ -1,6 +1,6 @@
> def main(request, response):
>     # Without X-XSS-Protection to disable non-standard XSS protection the functionality this
>     # resource offers is useless
>-    response.headers.set("X-XSS-Protection", "0")
>-    response.headers.set("Content-Type", "text/html")
>-    response.content = request.GET.first("content")
>+    response.headers.set(b"X-XSS-Protection", b"0")
>+    response.headers.set(b"Content-Type", b"text/html")
>+    response.content = request.GET.first(b"content")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/get-host-info.sub.js b/LayoutTests/imported/w3c/web-platform-tests/common/get-host-info.sub.js
>index 1c28a7f476f67d513e4627b6133d0c2e0ffc867a..8f37d557583b99235b7a1fa903e54e96f90b9870 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/get-host-info.sub.js
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/get-host-info.sub.js
>@@ -7,6 +7,7 @@ function get_host_info() {
>   var HTTP_PORT = '{{ports[http][0]}}';
>   var HTTP_PORT2 = '{{ports[http][1]}}';
>   var HTTPS_PORT = '{{ports[https][0]}}';
>+  var HTTPS_PORT2 = '{{ports[https][1]}}';
>   var PROTOCOL = self.location.protocol;
>   var IS_HTTPS = (PROTOCOL == "https:");
>   var HTTP_PORT_ELIDED = HTTP_PORT == "80" ? "" : (":" + HTTP_PORT);
>@@ -22,6 +23,7 @@ function get_host_info() {
>     HTTP_PORT: HTTP_PORT,
>     HTTP_PORT2: HTTP_PORT2,
>     HTTPS_PORT: HTTPS_PORT,
>+    HTTPS_PORT2: HTTPS_PORT2,
>     ORIGINAL_HOST: ORIGINAL_HOST,
>     REMOTE_HOST: REMOTE_HOST,
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/redirect-opt-in.py b/LayoutTests/imported/w3c/web-platform-tests/common/redirect-opt-in.py
>index ff5744b181547ab977c3f405bfeb96013a3cc4ce..b5e674a27fb6e2b459b1815ca86fe3c8f1d9b60f 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/redirect-opt-in.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/redirect-opt-in.py
>@@ -6,15 +6,15 @@ def main(request, response):
>     location - The resource to redirect to.
>     """
>     status = 302
>-    if "status" in request.GET:
>+    if b"status" in request.GET:
>         try:
>-            status = int(request.GET.first("status"))
>+            status = int(request.GET.first(b"status"))
>         except ValueError:
>             pass
> 
>     response.status = status
> 
>-    location = request.GET.first("location")
>+    location = request.GET.first(b"location")
> 
>-    response.headers.set("Location", location)
>-    response.headers.set("Timing-Allow-Origin", "*")
>+    response.headers.set(b"Location", location)
>+    response.headers.set(b"Timing-Allow-Origin", b"*")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/sab.js b/LayoutTests/imported/w3c/web-platform-tests/common/sab.js
>index c7fd1a742e64f66744b416584952effe29fda208..d40dd7cca8da10ad321067e638c772550f1a042f 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/sab.js
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/sab.js
>@@ -5,6 +5,9 @@
>     if (type === "ArrayBuffer") {
>       return new ArrayBuffer(length);
>     } else if (type === "SharedArrayBuffer") {
>+      if (sabConstructor.name !== "SharedArrayBuffer") {
>+        throw new Error("WebAssembly.Memory does not support shared:true");
>+      }
>       return new sabConstructor(length);
>     } else {
>       throw new Error("type has to be ArrayBuffer or SharedArrayBuffer");
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/README.md b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/README.md
>index fb9a2f108f9faf68bb86f0bd9f848dbd28630ca4..f957541f75ecc37416895d6bc19d1c229c0f71b8 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/README.md
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/README.md
>@@ -278,9 +278,9 @@ The ```excluded_tests``` section have objects with the same format as [Test Expa
> 
> Taking the spec JSON, the generator follows this algorithm:
> 
>-* Expand all ```excluded_tests``` to create a blacklist of selections
>+* Expand all ```excluded_tests``` to create a denylist of selections
> 
>-* For each `specification` entries: Expand the ```test_expansion``` pattern into selections and check each against the blacklist, if not marked as suppresed, generate the test resources for the selection
>+* For each `specification` entries: Expand the ```test_expansion``` pattern into selections and check each against the denylist, if not marked as suppresed, generate the test resources for the selection
> 
> ###  SourceContext Resolution
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/__init__.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/__init__.py
>new file mode 100644
>index 0000000000000000000000000000000000000000..a6834b8285a56bef0e1543fd901c7e6f2f8bc202
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/__init__.py
>@@ -0,0 +1 @@
>+# This file is required for Python to search this directory for modules.
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/__init__.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/__init__.py
>new file mode 100644
>index 0000000000000000000000000000000000000000..a6834b8285a56bef0e1543fd901c7e6f2f8bc202
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/__init__.py
>@@ -0,0 +1 @@
>+# This file is required for Python to search this directory for modules.
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/document.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/document.py
>index 3fc61a1e7baa3bc60968d578930f25f621b536f3..9a9f045e640fd57f66031b59cd9d21da8a55bfe7 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/document.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/document.py
>@@ -1,35 +1,36 @@
> import os, sys, json
> 
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import util
>+from wptserve.utils import isomorphic_decode, isomorphic_encode
> 
>+import importlib
>+util = importlib.import_module("common.security-features.scope.util")
> 
> def main(request, response):
>-  policyDeliveries = json.loads(request.GET.first("policyDeliveries", "[]"))
>+  policyDeliveries = json.loads(request.GET.first(b"policyDeliveries", b"[]"))
>   maybe_additional_headers = {}
>-  meta = ''
>-  error = ''
>+  meta = u''
>+  error = u''
>   for delivery in policyDeliveries:
>-    if delivery['deliveryType'] == 'meta':
>-      if delivery['key'] == 'referrerPolicy':
>-        meta += '<meta name="referrer" content="%s">' % delivery['value']
>+    if delivery[u'deliveryType'] == u'meta':
>+      if delivery[u'key'] == u'referrerPolicy':
>+        meta += u'<meta name="referrer" content="%s">' % delivery[u'value']
>       else:
>-        error = 'invalid delivery key'
>-    elif delivery['deliveryType'] == 'http-rp':
>-      if delivery['key'] == 'referrerPolicy':
>-        maybe_additional_headers['Referrer-Policy'] = delivery['value']
>+        error = u'invalid delivery key'
>+    elif delivery[u'deliveryType'] == u'http-rp':
>+      if delivery[u'key'] == u'referrerPolicy':
>+        maybe_additional_headers[b'Referrer-Policy'] = isomorphic_encode(delivery[u'value'])
>       else:
>-        error = 'invalid delivery key'
>+        error = u'invalid delivery key'
>     else:
>-      error = 'invalid deliveryType'
>+      error = u'invalid deliveryType'
> 
>-  handler = lambda: util.get_template("document.html.template") % ({
>-      "meta": meta,
>-      "error": error
>+  handler = lambda: util.get_template(u"document.html.template") % ({
>+      u"meta": meta,
>+      u"error": error
>   })
>   util.respond(
>       request,
>       response,
>       payload_generator=handler,
>-      content_type="text/html",
>+      content_type=b"text/html",
>       maybe_additional_headers=maybe_additional_headers)
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/util.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/util.py
>index 42f8326b36aab10751cf2052354925a7ad0ca867..da5aacf35e99a4bd9de9cb5c3e96e8b1804da054 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/util.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/util.py
>@@ -1,10 +1,11 @@
> import os
> 
>+from wptserve.utils import isomorphic_decode
> 
> def get_template(template_basename):
>-  script_directory = os.path.dirname(os.path.abspath(__file__))
>+  script_directory = os.path.dirname(os.path.abspath(isomorphic_decode(__file__)))
>   template_directory = os.path.abspath(
>-      os.path.join(script_directory, "template"))
>+      os.path.join(script_directory, u"template"))
>   template_filename = os.path.join(template_directory, template_basename)
> 
>   with open(template_filename, "r") as f:
>@@ -12,25 +13,25 @@ def get_template(template_basename):
> 
> 
> def __noop(request, response):
>-  return ""
>+  return u""
> 
> 
> def respond(request,
>             response,
>             status_code=200,
>-            content_type="text/html",
>+            content_type=b"text/html",
>             payload_generator=__noop,
>-            cache_control="no-cache; must-revalidate",
>-            access_control_allow_origin="*",
>+            cache_control=b"no-cache; must-revalidate",
>+            access_control_allow_origin=b"*",
>             maybe_additional_headers=None):
>   response.add_required_headers = False
>   response.writer.write_status(status_code)
> 
>   if access_control_allow_origin != None:
>-    response.writer.write_header("access-control-allow-origin",
>+    response.writer.write_header(b"access-control-allow-origin",
>                                  access_control_allow_origin)
>-  response.writer.write_header("content-type", content_type)
>-  response.writer.write_header("cache-control", cache_control)
>+  response.writer.write_header(b"content-type", content_type)
>+  response.writer.write_header(b"cache-control", cache_control)
> 
>   additional_headers = maybe_additional_headers or {}
>   for header, value in additional_headers.items():
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/w3c-import.log
>index 39c319386548168bdba18e7beba782747bd111e8..bcd305d7db6eaaf896644496d09f278fd849a3e9 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/w3c-import.log
>@@ -14,6 +14,7 @@ Property values requiring vendor prefixes:
> None
> ------------------------------------------------------------------------
> List of files:
>+/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/__init__.py
> /LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/document.py
> /LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/util.py
> /LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/worker.py
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/worker.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/worker.py
>index 716bcb8efffb84384dfc5620c1a8f6a0d193a878..6b321e7de17e36338f4264e474fa270408604054 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/worker.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/scope/worker.py
>@@ -1,44 +1,44 @@
> import os, sys, json
> 
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import util
>-
>+from wptserve.utils import isomorphic_decode, isomorphic_encode
>+import importlib
>+util = importlib.import_module("common.security-features.scope.util")
> 
> def main(request, response):
>-  policyDeliveries = json.loads(request.GET.first('policyDeliveries', '[]'))
>-  worker_type = request.GET.first('type', 'classic')
>-  commonjs_url = '%s://%s:%s/common/security-features/resources/common.sub.js' % (
>+  policyDeliveries = json.loads(request.GET.first(b'policyDeliveries', b'[]'))
>+  worker_type = request.GET.first(b'type', b'classic')
>+  commonjs_url = u'%s://%s:%s/common/security-features/resources/common.sub.js' % (
>       request.url_parts.scheme, request.url_parts.hostname,
>       request.url_parts.port)
>-  if worker_type == 'classic':
>-    import_line = 'importScripts("%s");' % commonjs_url
>+  if worker_type == b'classic':
>+    import_line = u'importScripts("%s");' % commonjs_url
>   else:
>-    import_line = 'import "%s";' % commonjs_url
>+    import_line = u'import "%s";' % commonjs_url
> 
>   maybe_additional_headers = {}
>-  error = ''
>+  error = u''
>   for delivery in policyDeliveries:
>-    if delivery['deliveryType'] == 'meta':
>-      error = '<meta> cannot be used in WorkerGlobalScope'
>-    elif delivery['deliveryType'] == 'http-rp':
>-      if delivery['key'] == 'referrerPolicy':
>-        maybe_additional_headers['Referrer-Policy'] = delivery['value']
>-      elif delivery['key'] == 'mixedContent' and delivery['value'] == 'opt-in':
>-        maybe_additional_headers['Content-Security-Policy'] = 'block-all-mixed-content'
>-      elif delivery['key'] == 'upgradeInsecureRequests' and delivery['value'] == 'upgrade':
>-        maybe_additional_headers['Content-Security-Policy'] = 'upgrade-insecure-requests'
>+    if delivery[u'deliveryType'] == u'meta':
>+      error = u'<meta> cannot be used in WorkerGlobalScope'
>+    elif delivery[u'deliveryType'] == u'http-rp':
>+      if delivery[u'key'] == u'referrerPolicy':
>+        maybe_additional_headers[b'Referrer-Policy'] = isomorphic_encode(delivery[u'value'])
>+      elif delivery[u'key'] == u'mixedContent' and delivery[u'value'] == u'opt-in':
>+        maybe_additional_headers[b'Content-Security-Policy'] = b'block-all-mixed-content'
>+      elif delivery[u'key'] == u'upgradeInsecureRequests' and delivery[u'value'] == u'upgrade':
>+        maybe_additional_headers[b'Content-Security-Policy'] = b'upgrade-insecure-requests'
>       else:
>-        error = 'invalid delivery key for http-rp: %s' % delivery['key']
>+        error = u'invalid delivery key for http-rp: %s' % delivery[u'key']
>     else:
>-      error = 'invalid deliveryType: %s' % delivery['deliveryType']
>+      error = u'invalid deliveryType: %s' % delivery[u'deliveryType']
> 
>-  handler = lambda: util.get_template('worker.js.template') % ({
>-      'import': import_line,
>-      'error': error
>+  handler = lambda: util.get_template(u'worker.js.template') % ({
>+      u'import': import_line,
>+      u'error': error
>   })
>   util.respond(
>       request,
>       response,
>       payload_generator=handler,
>-      content_type='text/javascript',
>+      content_type=b'text/javascript',
>       maybe_additional_headers=maybe_additional_headers)
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/audio.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/audio.py
>index eb95045e0315ab5c24a826325e1e16a6cd45827d..f16a0f7fbbe2116d85d92bd8a8d0098c532d7670 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/audio.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/audio.py
>@@ -1,10 +1,11 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(request, server_data):
>-    file = os.path.join(request.doc_root, "webaudio", "resources",
>-                        "sin_440Hz_-6dBFS_1s.wav")
>+    file = os.path.join(request.doc_root, u"webaudio", u"resources",
>+                        u"sin_440Hz_-6dBFS_1s.wav")
>     return open(file, "rb").read()
> 
> 
>@@ -13,6 +14,5 @@ def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = handler,
>-                        access_control_allow_origin = "*",
>-                        content_type = "audio/wav")
>-
>+                        access_control_allow_origin = b"*",
>+                        content_type = b"audio/wav")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/document.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/document.py
>index 59e0dcd7bc6cd3904b1aa8079ea161a24d2f51e6..52b684a4d9f614c0a18b711dd1a18182ee79fa8c 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/document.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/document.py
>@@ -1,9 +1,10 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(server_data):
>-    return subresource.get_template("document.html.template") % server_data
>+    return subresource.get_template(u"document.html.template") % server_data
> 
> def main(request, response):
>     subresource.respond(request,
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/empty.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/empty.py
>index 132e85ddeec9119c03a11e030c3e6f09c32735c4..312e12cbed9089b678367a1bd970a8c6261c86ab 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/empty.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/empty.py
>@@ -1,14 +1,14 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(server_data):
>-    return ''
>+    return u''
> 
> def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = generate_payload,
>-                        access_control_allow_origin = "*",
>-                        content_type = "text/plain")
>-
>+                        access_control_allow_origin = b"*",
>+                        content_type = b"text/plain")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/font.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/font.py
>index 26311a9f079080e7fc11995e8c180b12a6201b16..6e33dbbc35a6334586a83fe0762f6b6cb8112e21 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/font.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/font.py
>@@ -1,72 +1,81 @@
> import os, sys, base64
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+import six
>+
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
>+
>+
>+def decodebytes(s):
>+    if six.PY3:
>+        return base64.decodebytes(six.ensure_binary(s))
>+    return base64.decodestring(s)
> 
> def generate_payload(request, server_data):
>-    data = ('{"headers": %(headers)s}') % server_data
>-    if "id" in request.GET:
>-        request.server.stash.put(request.GET["id"], data)
>+    data = (u'{"headers": %(headers)s}') % server_data
>+    if b"id" in request.GET:
>+        request.server.stash.put(request.GET[b"id"], data)
>     # Simple base64 encoded .tff font
>-    return base64.decodestring("AAEAAAANAIAAAwBQRkZUTU6u6MkAAAXcAAAAHE9TLzJWYW"
>-                               "QKAAABWAAAAFZjbWFwAA8D7wAAAcAAAAFCY3Z0IAAhAnkA"
>-                               "AAMEAAAABGdhc3D//wADAAAF1AAAAAhnbHlmCC6aTwAAAx"
>-                               "QAAACMaGVhZO8ooBcAAADcAAAANmhoZWEIkAV9AAABFAAA"
>-                               "ACRobXR4EZQAhQAAAbAAAAAQbG9jYQBwAFQAAAMIAAAACm"
>-                               "1heHAASQA9AAABOAAAACBuYW1lehAVOgAAA6AAAAIHcG9z"
>-                               "dP+uADUAAAWoAAAAKgABAAAAAQAAMhPyuV8PPPUACwPoAA"
>-                               "AAAMU4Lm0AAAAAxTgubQAh/5wFeAK8AAAACAACAAAAAAAA"
>-                               "AAEAAAK8/5wAWgXcAAAAAAV4AAEAAAAAAAAAAAAAAAAAAA"
>-                               "AEAAEAAAAEAAwAAwAAAAAAAgAAAAEAAQAAAEAALgAAAAAA"
>-                               "AQXcAfQABQAAAooCvAAAAIwCigK8AAAB4AAxAQIAAAIABg"
>-                               "kAAAAAAAAAAAABAAAAAAAAAAAAAAAAUGZFZABAAEEAQQMg"
>-                               "/zgAWgK8AGQAAAABAAAAAAAABdwAIQAAAAAF3AAABdwAZA"
>-                               "AAAAMAAAADAAAAHAABAAAAAAA8AAMAAQAAABwABAAgAAAA"
>-                               "BAAEAAEAAABB//8AAABB////wgABAAAAAAAAAQYAAAEAAA"
>-                               "AAAAAAAQIAAAACAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAA"
>-                               "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAwAAAAAAAA"
>-                               "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>-                               "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>-                               "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>-                               "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>-                               "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>-                               "AAAAAAAAAAAAAAAAAAAhAnkAAAAqACoAKgBGAAAAAgAhAA"
>-                               "ABKgKaAAMABwAusQEALzyyBwQA7TKxBgXcPLIDAgDtMgCx"
>-                               "AwAvPLIFBADtMrIHBgH8PLIBAgDtMjMRIREnMxEjIQEJ6M"
>-                               "fHApr9ZiECWAAAAwBk/5wFeAK8AAMABwALAAABNSEVATUh"
>-                               "FQE1IRUB9AH0/UQDhPu0BRQB9MjI/tTIyP7UyMgAAAAAAA"
>-                               "4ArgABAAAAAAAAACYATgABAAAAAAABAAUAgQABAAAAAAAC"
>-                               "AAYAlQABAAAAAAADACEA4AABAAAAAAAEAAUBDgABAAAAAA"
>-                               "AFABABNgABAAAAAAAGAAUBUwADAAEECQAAAEwAAAADAAEE"
>-                               "CQABAAoAdQADAAEECQACAAwAhwADAAEECQADAEIAnAADAA"
>-                               "EECQAEAAoBAgADAAEECQAFACABFAADAAEECQAGAAoBRwBD"
>-                               "AG8AcAB5AHIAaQBnAGgAdAAgACgAYwApACAAMgAwADAAOA"
>-                               "AgAE0AbwB6AGkAbABsAGEAIABDAG8AcgBwAG8AcgBhAHQA"
>-                               "aQBvAG4AAENvcHlyaWdodCAoYykgMjAwOCBNb3ppbGxhIE"
>-                               "NvcnBvcmF0aW9uAABNAGEAcgBrAEEAAE1hcmtBAABNAGUA"
>-                               "ZABpAHUAbQAATWVkaXVtAABGAG8AbgB0AEYAbwByAGcAZQ"
>-                               "AgADIALgAwACAAOgAgAE0AYQByAGsAQQAgADoAIAA1AC0A"
>-                               "MQAxAC0AMgAwADAAOAAARm9udEZvcmdlIDIuMCA6IE1hcm"
>-                               "tBIDogNS0xMS0yMDA4AABNAGEAcgBrAEEAAE1hcmtBAABW"
>-                               "AGUAcgBzAGkAbwBuACAAMAAwADEALgAwADAAMAAgAABWZX"
>-                               "JzaW9uIDAwMS4wMDAgAABNAGEAcgBrAEEAAE1hcmtBAAAA"
>-                               "AgAAAAAAAP+DADIAAAABAAAAAAAAAAAAAAAAAAAAAAAEAA"
>-                               "AAAQACACQAAAAAAAH//wACAAAAAQAAAADEPovuAAAAAMU4"
>-                               "Lm0AAAAAxTgubQ==");
>+    return decodebytes(b"AAEAAAANAIAAAwBQRkZUTU6u6MkAAAXcAAAAHE9TLzJWYW"
>+                       b"QKAAABWAAAAFZjbWFwAA8D7wAAAcAAAAFCY3Z0IAAhAnkA"
>+                       b"AAMEAAAABGdhc3D//wADAAAF1AAAAAhnbHlmCC6aTwAAAx"
>+                       b"QAAACMaGVhZO8ooBcAAADcAAAANmhoZWEIkAV9AAABFAAA"
>+                       b"ACRobXR4EZQAhQAAAbAAAAAQbG9jYQBwAFQAAAMIAAAACm"
>+                       b"1heHAASQA9AAABOAAAACBuYW1lehAVOgAAA6AAAAIHcG9z"
>+                       b"dP+uADUAAAWoAAAAKgABAAAAAQAAMhPyuV8PPPUACwPoAA"
>+                       b"AAAMU4Lm0AAAAAxTgubQAh/5wFeAK8AAAACAACAAAAAAAA"
>+                       b"AAEAAAK8/5wAWgXcAAAAAAV4AAEAAAAAAAAAAAAAAAAAAA"
>+                       b"AEAAEAAAAEAAwAAwAAAAAAAgAAAAEAAQAAAEAALgAAAAAA"
>+                       b"AQXcAfQABQAAAooCvAAAAIwCigK8AAAB4AAxAQIAAAIABg"
>+                       b"kAAAAAAAAAAAABAAAAAAAAAAAAAAAAUGZFZABAAEEAQQMg"
>+                       b"/zgAWgK8AGQAAAABAAAAAAAABdwAIQAAAAAF3AAABdwAZA"
>+                       b"AAAAMAAAADAAAAHAABAAAAAAA8AAMAAQAAABwABAAgAAAA"
>+                       b"BAAEAAEAAABB//8AAABB////wgABAAAAAAAAAQYAAAEAAA"
>+                       b"AAAAAAAQIAAAACAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAA"
>+                       b"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAwAAAAAAAA"
>+                       b"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>+                       b"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>+                       b"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>+                       b"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>+                       b"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
>+                       b"AAAAAAAAAAAAAAAAAAAhAnkAAAAqACoAKgBGAAAAAgAhAA"
>+                       b"ABKgKaAAMABwAusQEALzyyBwQA7TKxBgXcPLIDAgDtMgCx"
>+                       b"AwAvPLIFBADtMrIHBgH8PLIBAgDtMjMRIREnMxEjIQEJ6M"
>+                       b"fHApr9ZiECWAAAAwBk/5wFeAK8AAMABwALAAABNSEVATUh"
>+                       b"FQE1IRUB9AH0/UQDhPu0BRQB9MjI/tTIyP7UyMgAAAAAAA"
>+                       b"4ArgABAAAAAAAAACYATgABAAAAAAABAAUAgQABAAAAAAAC"
>+                       b"AAYAlQABAAAAAAADACEA4AABAAAAAAAEAAUBDgABAAAAAA"
>+                       b"AFABABNgABAAAAAAAGAAUBUwADAAEECQAAAEwAAAADAAEE"
>+                       b"CQABAAoAdQADAAEECQACAAwAhwADAAEECQADAEIAnAADAA"
>+                       b"EECQAEAAoBAgADAAEECQAFACABFAADAAEECQAGAAoBRwBD"
>+                       b"AG8AcAB5AHIAaQBnAGgAdAAgACgAYwApACAAMgAwADAAOA"
>+                       b"AgAE0AbwB6AGkAbABsAGEAIABDAG8AcgBwAG8AcgBhAHQA"
>+                       b"aQBvAG4AAENvcHlyaWdodCAoYykgMjAwOCBNb3ppbGxhIE"
>+                       b"NvcnBvcmF0aW9uAABNAGEAcgBrAEEAAE1hcmtBAABNAGUA"
>+                       b"ZABpAHUAbQAATWVkaXVtAABGAG8AbgB0AEYAbwByAGcAZQ"
>+                       b"AgADIALgAwACAAOgAgAE0AYQByAGsAQQAgADoAIAA1AC0A"
>+                       b"MQAxAC0AMgAwADAAOAAARm9udEZvcmdlIDIuMCA6IE1hcm"
>+                       b"tBIDogNS0xMS0yMDA4AABNAGEAcgBrAEEAAE1hcmtBAABW"
>+                       b"AGUAcgBzAGkAbwBuACAAMAAwADEALgAwADAAMAAgAABWZX"
>+                       b"JzaW9uIDAwMS4wMDAgAABNAGEAcgBrAEEAAE1hcmtBAAAA"
>+                       b"AgAAAAAAAP+DADIAAAABAAAAAAAAAAAAAAAAAAAAAAAEAA"
>+                       b"AAAQACACQAAAAAAAH//wACAAAAAQAAAADEPovuAAAAAMU4"
>+                       b"Lm0AAAAAxTgubQ==")
> 
> def generate_report_headers_payload(request, server_data):
>-    stashed_data = request.server.stash.take(request.GET["id"])
>+    stashed_data = request.server.stash.take(request.GET[b"id"])
>     return stashed_data
> 
> def main(request, response):
>     handler = lambda data: generate_payload(request, data)
>-    content_type = 'application/x-font-truetype'
>+    content_type = b'application/x-font-truetype'
> 
>-    if "report-headers" in request.GET:
>+    if b"report-headers" in request.GET:
>         handler = lambda data: generate_report_headers_payload(request, data)
>-        content_type = 'application/json'
>+        content_type = b'application/json'
> 
>     subresource.respond(request,
>                         response,
>                         payload_generator = handler,
>                         content_type = content_type,
>-                        access_control_allow_origin = "*")
>+                        access_control_allow_origin = b"*")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/image.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/image.py
>index 42ebc0767bbea9d3d50f4a3f23c7863748e6908d..6991224717e70becbd45709461a3f807c40b2081 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/image.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/image.py
>@@ -1,6 +1,11 @@
>-import os, sys, array, math, StringIO
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+import os, sys, array, math
>+
>+from six import BytesIO
>+
>+from wptserve.utils import isomorphic_decode
>+
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> class Image:
>     """This class partially implements the interface of the PIL.Image.Image.
>@@ -36,9 +41,9 @@ def putdata(self, color_data):
>     def save(self, f, type):
>         assert type == "BMP"
>         # 54 bytes of preambule + image color data.
>-        filesize = 54 + 3 * self.width * self.height;
>+        filesize = 54 + 3 * self.width * self.height
>         # 14 bytes of header.
>-        bmpfileheader = bytearray(['B', 'M'] + self._int_to_bytes(filesize) +
>+        bmpfileheader = bytearray([ord('B'), ord('M')] + self._int_to_bytes(filesize) +
>                                   [0, 0, 0, 0, 54, 0, 0, 0])
>         # 40 bytes of info.
>         bmpinfoheader = bytearray([40, 0, 0, 0] +
>@@ -47,7 +52,7 @@ def save(self, f, type):
>                                   [1, 0, 24] + (25 * [0]))
> 
>         padlength = (4 - (self.width * 3) % 4) % 4
>-        bmppad = bytearray([0, 0, 0]);
>+        bmppad = bytearray([0, 0, 0])
>         padding = bmppad[0 : padlength]
> 
>         f.write(bmpfileheader)
>@@ -59,7 +64,7 @@ def save(self, f, type):
>             f.write(padding)
> 
> def encode_string_as_bmp_image(string_data):
>-    data_bytes = array.array("B", string_data)
>+    data_bytes = array.array("B", string_data.encode("utf-8"))
> 
>     num_bytes = len(data_bytes)
> 
>@@ -79,33 +84,33 @@ def encode_string_as_bmp_image(string_data):
>     img.putdata(color_data)
> 
>     # Flush image to string.
>-    f = StringIO.StringIO()
>+    f = BytesIO()
>     img.save(f, "BMP")
>     f.seek(0)
> 
>     return f.read()
> 
> def generate_payload(request, server_data):
>-    data = ('{"headers": %(headers)s}') % server_data
>-    if "id" in request.GET:
>-        request.server.stash.put(request.GET["id"], data)
>+    data = (u'{"headers": %(headers)s}') % server_data
>+    if b"id" in request.GET:
>+        request.server.stash.put(request.GET[b"id"], data)
>     data = encode_string_as_bmp_image(data)
>     return data
> 
> def generate_report_headers_payload(request, server_data):
>-    stashed_data = request.server.stash.take(request.GET["id"])
>+    stashed_data = request.server.stash.take(request.GET[b"id"])
>     return stashed_data
> 
> def main(request, response):
>     handler = lambda data: generate_payload(request, data)
>-    content_type = 'image/bmp'
>+    content_type = b'image/bmp'
> 
>-    if "report-headers" in request.GET:
>+    if b"report-headers" in request.GET:
>         handler = lambda data: generate_report_headers_payload(request, data)
>-        content_type = 'application/json'
>+        content_type = b'application/json'
> 
>     subresource.respond(request,
>                         response,
>                         payload_generator = handler,
>                         content_type = content_type,
>-                        access_control_allow_origin = "*")
>+                        access_control_allow_origin = b"*")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/referrer.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/referrer.py
>index ad9e24847a108826db1e7124c7bff6f6f1a3fd5c..e36631479e60fab893de7e02d55a3f2ec2a32a15 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/referrer.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/referrer.py
>@@ -1,4 +1,4 @@
> def main(request, response):
>-    referrer = request.headers.get("referer", "")
>-    response_headers = [("Content-Type", "text/javascript")];
>-    return (200, response_headers, "window.referrer = '" + referrer + "'")
>+    referrer = request.headers.get(b"referer", b"")
>+    response_headers = [(b"Content-Type", b"text/javascript")]
>+    return (200, response_headers, b"window.referrer = '" + referrer + b"'")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/script.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/script.py
>index 9d7cd0469f0ef9d2da9c322db4257cbdfbf310e8..9701816b9fa126dfe4f855abefedeafaf4e34573 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/script.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/script.py
>@@ -1,13 +1,14 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(server_data):
>-    return subresource.get_template("script.js.template") % server_data
>+    return subresource.get_template(u"script.js.template") % server_data
> 
> def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = generate_payload,
>-                        content_type = "application/javascript")
>-
>+                        content_type = b"application/javascript")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/shared-worker.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/shared-worker.py
>index d8fd6876449ee844a758b2b1028588d866746d9e..bdfb61bbb3f4f54bdcb34c9b70d4f6849b14fbec 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/shared-worker.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/shared-worker.py
>@@ -1,12 +1,13 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(server_data):
>-    return subresource.get_template("shared-worker.js.template") % server_data
>+    return subresource.get_template(u"shared-worker.js.template") % server_data
> 
> def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = generate_payload,
>-                        content_type = "application/javascript")
>+                        content_type = b"application/javascript")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/static-import.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/static-import.py
>index 0a97dd1a32652b9f41edcb56eefe197ec4276ce1..435753eefb6215699dce9f6201c723055cd31949 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/static-import.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/static-import.py
>@@ -1,11 +1,14 @@
>-import os, sys, urllib
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+import os, sys
>+from six.moves.urllib.parse import unquote
>+
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(request):
>-    import_url = urllib.unquote(request.GET['import_url'])
>-    return subresource.get_template("static-import.js.template") % {
>-        "import_url": import_url
>+    import_url = unquote(isomorphic_decode(request.GET[b'import_url']))
>+    return subresource.get_template(u"static-import.js.template") % {
>+        u"import_url": import_url
>     }
> 
> def main(request, response):
>@@ -13,4 +16,4 @@ def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = payload_generator,
>-                        content_type = "application/javascript")
>+                        content_type = b"application/javascript")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/stylesheet.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/stylesheet.py
>index ec62a8cd5f282130f66c1bdfe47240ca4cc625af..29079af922894a3ae052a807f269dde23fbfde4c 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/stylesheet.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/stylesheet.py
>@@ -1,54 +1,55 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(request, server_data):
>-    data = ('{"headers": %(headers)s}') % server_data
>-    type = 'image'
>-    if "type" in request.GET:
>-        type = request.GET["type"]
>+    data = (u'{"headers": %(headers)s}') % server_data
>+    type = b'image'
>+    if b"type" in request.GET:
>+        type = request.GET[b"type"]
> 
>-    if "id" in request.GET:
>-        request.server.stash.put(request.GET["id"], data)
>+    if b"id" in request.GET:
>+        request.server.stash.put(request.GET[b"id"], data)
> 
>-    if type == 'image':
>-        return subresource.get_template("image.css.template") % {"id": request.GET["id"]}
>+    if type == b'image':
>+        return subresource.get_template(u"image.css.template") % {u"id": isomorphic_decode(request.GET[b"id"])}
> 
>-    elif type == 'font':
>-        return subresource.get_template("font.css.template") % {"id": request.GET["id"]}
>+    elif type == b'font':
>+        return subresource.get_template(u"font.css.template") % {u"id": isomorphic_decode(request.GET[b"id"])}
> 
>-    elif type == 'svg':
>-        return subresource.get_template("svg.css.template") % {
>-            "id": request.GET["id"],
>-            "property": request.GET["property"]}
>+    elif type == b'svg':
>+        return subresource.get_template(u"svg.css.template") % {
>+            u"id": isomorphic_decode(request.GET[b"id"]),
>+            u"property": isomorphic_decode(request.GET[b"property"])}
> 
> def generate_import_rule(request, server_data):
>-    return "@import url('%(url)s');" % {
>-        "url": subresource.create_url(request, swap_origin=True,
>-                                      query_parameter_to_remove="import-rule")
>+    return u"@import url('%(url)s');" % {
>+        u"url": subresource.create_url(request, swap_origin=True,
>+                                       query_parameter_to_remove=u"import-rule")
>     }
> 
> def generate_report_headers_payload(request, server_data):
>-    stashed_data = request.server.stash.take(request.GET["id"])
>+    stashed_data = request.server.stash.take(request.GET[b"id"])
>     return stashed_data
> 
> def main(request, response):
>     payload_generator = lambda data: generate_payload(request, data)
>-    content_type = "text/css"
>-    referrer_policy = "unsafe-url"
>-    if "import-rule" in request.GET:
>+    content_type = b"text/css"
>+    referrer_policy = b"unsafe-url"
>+    if b"import-rule" in request.GET:
>         payload_generator = lambda data: generate_import_rule(request, data)
> 
>-    if "report-headers" in request.GET:
>+    if b"report-headers" in request.GET:
>         payload_generator = lambda data: generate_report_headers_payload(request, data)
>-        content_type = 'application/json'
>+        content_type = b'application/json'
> 
>-    if "referrer-policy" in request.GET:
>-        referrer_policy = request.GET["referrer-policy"]
>+    if b"referrer-policy" in request.GET:
>+        referrer_policy = request.GET[b"referrer-policy"]
> 
>     subresource.respond(
>         request,
>         response,
>         payload_generator = payload_generator,
>         content_type = content_type,
>-        maybe_additional_headers = { "Referrer-Policy": referrer_policy })
>+        maybe_additional_headers = { b"Referrer-Policy": referrer_policy })
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/subresource.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/subresource.py
>index 582378d41fa38a29da1bbda9a3065d4585a36875..0416c324b31de08fe95bd955129793c6d750324c 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/subresource.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/subresource.py
>@@ -1,10 +1,13 @@
>-import os, json, urllib, urlparse
>+import os, json
>+from six.moves.urllib.parse import parse_qsl, SplitResult, urlencode, urlsplit, urlunsplit
>+
>+from wptserve.utils import isomorphic_decode, isomorphic_encode
> 
> def get_template(template_basename):
>-    script_directory = os.path.dirname(os.path.abspath(__file__))
>+    script_directory = os.path.dirname(os.path.abspath(isomorphic_decode(__file__)))
>     template_directory = os.path.abspath(os.path.join(script_directory,
>-                                                      "template"))
>-    template_filename = os.path.join(template_directory, template_basename);
>+                                                      u"template"))
>+    template_filename = os.path.join(template_directory, template_basename)
> 
>     with open(template_filename, "r") as f:
>         return f.read()
>@@ -13,15 +16,15 @@ def get_template(template_basename):
> def redirect(url, response):
>     response.add_required_headers = False
>     response.writer.write_status(301)
>-    response.writer.write_header("access-control-allow-origin", "*")
>-    response.writer.write_header("location", url)
>+    response.writer.write_header(b"access-control-allow-origin", b"*")
>+    response.writer.write_header(b"location", isomorphic_encode(url))
>     response.writer.end_headers()
>-    response.writer.write("")
>+    response.writer.write(u"")
> 
> 
> # TODO(kristijanburnik): subdomain_prefix is a hardcoded value aligned with
> # referrer-policy-test-case.js. The prefix should be configured in one place.
>-def __get_swapped_origin_netloc(netloc, subdomain_prefix = "www1."):
>+def __get_swapped_origin_netloc(netloc, subdomain_prefix = u"www1."):
>     if netloc.startswith(subdomain_prefix):
>         return netloc[len(subdomain_prefix):]
>     else:
>@@ -40,16 +43,16 @@ def create_url(request,
>                swap_scheme=False,
>                swap_origin=False,
>                downgrade=False,
>-               query_parameter_to_remove="redirection"):
>-    parsed = urlparse.urlsplit(request.url)
>+               query_parameter_to_remove=u"redirection"):
>+    parsed = urlsplit(request.url)
>     destination_netloc = parsed.netloc
> 
>     scheme = parsed.scheme
>     if swap_scheme:
>-        scheme = "http" if parsed.scheme == "https" else "https"
>-        hostname = parsed.netloc.split(':')[0]
>-        port = request.server.config["ports"][scheme][0]
>-        destination_netloc = ":".join([hostname, str(port)])
>+        scheme = u"http" if parsed.scheme == u"https" else u"https"
>+        hostname = parsed.netloc.split(u':')[0]
>+        port = request.server.config[u"ports"][scheme][0]
>+        destination_netloc = u":".join([hostname, str(port)])
> 
>     if downgrade:
>         # These rely on some unintuitive cleverness due to WPT's test setup:
>@@ -58,107 +61,107 @@ def create_url(request,
>         # which will be upgraded to `https://[domain]:[https-port]`.
>         # If the upgrade fails, the load will fail, as we don't serve HTTP over
>         # the secure port.
>-        if parsed.scheme == "https":
>-            scheme = "http"
>-        elif parsed.scheme == "wss":
>-            scheme = "ws"
>+        if parsed.scheme == u"https":
>+            scheme = u"http"
>+        elif parsed.scheme == u"wss":
>+            scheme = u"ws"
>         else:
>-            raise ValueError("Downgrade redirection: Invalid scheme '%s'" %
>+            raise ValueError(u"Downgrade redirection: Invalid scheme '%s'" %
>                              parsed.scheme)
>-        hostname = parsed.netloc.split(':')[0]
>-        port = request.server.config["ports"][parsed.scheme][0]
>-        destination_netloc = ":".join([hostname, str(port)])
>+        hostname = parsed.netloc.split(u':')[0]
>+        port = request.server.config[u"ports"][parsed.scheme][0]
>+        destination_netloc = u":".join([hostname, str(port)])
> 
>     if swap_origin:
>         destination_netloc = __get_swapped_origin_netloc(destination_netloc)
> 
>-    parsed_query = urlparse.parse_qsl(parsed.query, keep_blank_values=True)
>-    parsed_query = filter(lambda x: x[0] != query_parameter_to_remove,
>-                          parsed_query)
>+    parsed_query = parse_qsl(parsed.query, keep_blank_values=True)
>+    parsed_query = [x for x in parsed_query if x[0] != query_parameter_to_remove]
> 
>-    destination_url = urlparse.urlunsplit(urlparse.SplitResult(
>+    destination_url = urlunsplit(SplitResult(
>         scheme = scheme,
>         netloc = destination_netloc,
>         path = parsed.path,
>-        query = urllib.urlencode(parsed_query),
>+        query = urlencode(parsed_query),
>         fragment = None))
> 
>     return destination_url
> 
> 
> def preprocess_redirection(request, response):
>-    if "redirection" not in request.GET:
>+    if b"redirection" not in request.GET:
>         return False
> 
>-    redirection = request.GET["redirection"]
>+    redirection = request.GET[b"redirection"]
> 
>-    if redirection == "no-redirect":
>+    if redirection == b"no-redirect":
>         return False
>-    elif redirection == "keep-scheme":
>+    elif redirection == b"keep-scheme":
>         redirect_url = create_url(request, swap_scheme=False)
>-    elif redirection == "swap-scheme":
>+    elif redirection == b"swap-scheme":
>         redirect_url = create_url(request, swap_scheme=True)
>-    elif redirection == "downgrade":
>+    elif redirection == b"downgrade":
>         redirect_url = create_url(request, downgrade=True)
>-    elif redirection == "keep-origin":
>+    elif redirection == b"keep-origin":
>         redirect_url = create_url(request, swap_origin=False)
>-    elif redirection == "swap-origin":
>+    elif redirection == b"swap-origin":
>         redirect_url = create_url(request, swap_origin=True)
>     else:
>-        raise ValueError("Invalid redirection type '%s'" % redirection)
>+        raise ValueError(u"Invalid redirection type '%s'" % isomorphic_decode(redirection))
> 
>     redirect(redirect_url, response)
>     return True
> 
> 
> def preprocess_stash_action(request, response):
>-    if "action" not in request.GET:
>+    if b"action" not in request.GET:
>         return False
> 
>-    action = request.GET["action"]
>+    action = request.GET[b"action"]
> 
>-    key = request.GET["key"]
>+    key = request.GET[b"key"]
>     stash = request.server.stash
>-    path = request.GET.get("path", request.url.split('?'))[0]
>+    path = request.GET[b"path"] if b"path" in request.GET \
>+           else isomorphic_encode(request.url.split(u'?')[0])
> 
>-    if action == "put":
>-        value = request.GET["value"]
>+    if action == b"put":
>+        value = isomorphic_decode(request.GET[b"value"])
>         stash.take(key=key, path=path)
>         stash.put(key=key, value=value, path=path)
>-        response_data = json.dumps({"status": "success", "result": key})
>-    elif action == "purge":
>+        response_data = json.dumps({u"status": u"success", u"result": isomorphic_decode(key)})
>+    elif action == b"purge":
>         value = stash.take(key=key, path=path)
>         return False
>-    elif action == "take":
>+    elif action == b"take":
>         value = stash.take(key=key, path=path)
>         if value is None:
>-            status = "allowed"
>+            status = u"allowed"
>         else:
>-            status = "blocked"
>-        response_data = json.dumps({"status": status, "result": value})
>+            status = u"blocked"
>+        response_data = json.dumps({u"status": status, u"result": value})
>     else:
>         return False
> 
>     response.add_required_headers = False
>     response.writer.write_status(200)
>-    response.writer.write_header("content-type", "text/javascript")
>-    response.writer.write_header("cache-control", "no-cache; must-revalidate")
>+    response.writer.write_header(b"content-type", b"text/javascript")
>+    response.writer.write_header(b"cache-control", b"no-cache; must-revalidate")
>     response.writer.end_headers()
>     response.writer.write(response_data)
>     return True
> 
> 
> def __noop(request, response):
>-    return ""
>+    return u""
> 
> 
> def respond(request,
>             response,
>             status_code = 200,
>-            content_type = "text/html",
>+            content_type = b"text/html",
>             payload_generator = __noop,
>-            cache_control = "no-cache; must-revalidate",
>-            access_control_allow_origin = "*",
>+            cache_control = b"no-cache; must-revalidate",
>+            access_control_allow_origin = b"*",
>             maybe_additional_headers = None):
>     if preprocess_redirection(request, response):
>         return
>@@ -170,10 +173,10 @@ def respond(request,
>     response.writer.write_status(status_code)
> 
>     if access_control_allow_origin != None:
>-        response.writer.write_header("access-control-allow-origin",
>+        response.writer.write_header(b"access-control-allow-origin",
>                                      access_control_allow_origin)
>-    response.writer.write_header("content-type", content_type)
>-    response.writer.write_header("cache-control", cache_control)
>+    response.writer.write_header(b"content-type", content_type)
>+    response.writer.write_header(b"cache-control", cache_control)
> 
>     additional_headers = maybe_additional_headers or {}
>     for header, value in additional_headers.items():
>@@ -181,9 +184,16 @@ def respond(request,
> 
>     response.writer.end_headers()
> 
>-    server_data = {"headers": json.dumps(request.headers, indent = 4)}
>+    new_headers = {}
>+    new_val = []
>+    for key, val in request.headers.items():
>+        if len(val) == 1:
>+            new_val = isomorphic_decode(val[0])
>+        else:
>+            new_val = [isomorphic_decode(x) for x in val]
>+        new_headers[isomorphic_decode(key)] = new_val
>+
>+    server_data = {u"headers": json.dumps(new_headers, indent = 4)}
> 
>     payload = payload_generator(server_data)
>     response.writer.write(payload)
>-
>-
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/svg.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/svg.py
>index 6353079bb89e190d1851a153109f5c9d2cfeb654..9c569e3bf52c4a712e80dbf06480aaaf110f6463 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/svg.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/svg.py
>@@ -1,34 +1,35 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(request, server_data):
>-    data = ('{"headers": %(headers)s}') % server_data
>-    if "id" in request.GET:
>+    data = (u'{"headers": %(headers)s}') % server_data
>+    if b"id" in request.GET:
>         with request.server.stash.lock:
>-            request.server.stash.take(request.GET["id"])
>-            request.server.stash.put(request.GET["id"], data)
>-    return "<svg xmlns='http://www.w3.org/2000/svg'></svg>";
>+            request.server.stash.take(request.GET[b"id"])
>+            request.server.stash.put(request.GET[b"id"], data)
>+    return u"<svg xmlns='http://www.w3.org/2000/svg'></svg>"
> 
> def generate_payload_embedded(request, server_data):
>-    return subresource.get_template("svg.embedded.template") % {
>-        "id": request.GET["id"],
>-        "property": request.GET["property"]};
>+    return subresource.get_template(u"svg.embedded.template") % {
>+        u"id": isomorphic_decode(request.GET[b"id"]),
>+        u"property": isomorphic_decode(request.GET[b"property"])}
> 
> def generate_report_headers_payload(request, server_data):
>-    stashed_data = request.server.stash.take(request.GET["id"])
>+    stashed_data = request.server.stash.take(request.GET[b"id"])
>     return stashed_data
> 
> def main(request, response):
>     handler = lambda data: generate_payload(request, data)
>-    content_type = 'image/svg+xml'
>+    content_type = b'image/svg+xml'
> 
>-    if "embedded-svg" in request.GET:
>+    if b"embedded-svg" in request.GET:
>         handler = lambda data: generate_payload_embedded(request, data)
> 
>-    if "report-headers" in request.GET:
>+    if b"report-headers" in request.GET:
>         handler = lambda data: generate_report_headers_payload(request, data)
>-        content_type = 'application/json'
>+        content_type = b'application/json'
> 
>     subresource.respond(request,
>                         response,
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/video.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/video.py
>index c8d8548ac3eaef9122347de6ef05cd7a230c6f96..7cfbbfa68c8dc6ebba18308188e14000d28ab379 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/video.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/video.py
>@@ -1,9 +1,10 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(request, server_data):
>-    file = os.path.join(request.doc_root, "media", "movie_5.ogv")
>+    file = os.path.join(request.doc_root, u"media", u"movie_5.ogv")
>     return open(file, "rb").read()
> 
> 
>@@ -12,6 +13,5 @@ def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = handler,
>-                        access_control_allow_origin = "*",
>-                        content_type = "video/ogg")
>-
>+                        access_control_allow_origin = b"*",
>+                        content_type = b"video/ogg")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/worker.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/worker.py
>index 85c1f67a9675a992e9d00ed70feafea0e8b0eb30..f655633b5db68ec66be298b73e97ab0084cc095e 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/worker.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/worker.py
>@@ -1,12 +1,13 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(server_data):
>-    return subresource.get_template("worker.js.template") % server_data
>+    return subresource.get_template(u"worker.js.template") % server_data
> 
> def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = generate_payload,
>-                        content_type = "application/javascript")
>+                        content_type = b"application/javascript")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/xhr.py b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/xhr.py
>index 82a4cb0b657956cb20efcfb0142ad4040875eabe..75921e9156921bda8af0d1231997dfc5a61e726f 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/xhr.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/subresource/xhr.py
>@@ -1,15 +1,16 @@
> import os, sys
>-sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
>-import subresource
>+from wptserve.utils import isomorphic_decode
>+import importlib
>+subresource = importlib.import_module("common.security-features.subresource.subresource")
> 
> def generate_payload(server_data):
>-    data = ('{"headers": %(headers)s}') % server_data
>+    data = (u'{"headers": %(headers)s}') % server_data
>     return data
> 
> def main(request, response):
>     subresource.respond(request,
>                         response,
>                         payload_generator = generate_payload,
>-                        access_control_allow_origin = "*",
>-                        content_type = "application/json")
>-
>+                        access_control_allow_origin = b"*",
>+                        content_type = b"application/json",
>+                        cache_control = b"no-store")
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/w3c-import.log
>index 413e8e8b76afc739975601bff2ee76123ac398fa..1edd8b1e1999650a1c55c5aab1177dc52082b9c7 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/security-features/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/security-features/w3c-import.log
>@@ -15,4 +15,5 @@ None
> ------------------------------------------------------------------------
> List of files:
> /LayoutTests/imported/w3c/web-platform-tests/common/security-features/README.md
>+/LayoutTests/imported/w3c/web-platform-tests/common/security-features/__init__.py
> /LayoutTests/imported/w3c/web-platform-tests/common/security-features/types.md
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/slow.py b/LayoutTests/imported/w3c/web-platform-tests/common/slow.py
>index f3b1c7e2ea61b571bd56cc1c70c5f89bb8e7e4dc..5329a04ed2d7b8a8de09673d9d8a5d3768f3cb5a 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/slow.py
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/slow.py
>@@ -2,4 +2,4 @@
> 
> def main(request, response):
>     time.sleep(2)
>-    return 200, [], ''
>+    return 200, [], b''
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/square.png b/LayoutTests/imported/w3c/web-platform-tests/common/square.png
>new file mode 100644
>index 0000000000000000000000000000000000000000..01c9666a8de9d5535615aff830810e5df4b2156f
>GIT binary patch
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>
>literal 0
>HcmV?d00001
>
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/stringifiers.js b/LayoutTests/imported/w3c/web-platform-tests/common/stringifiers.js
>index 4ef7a1bfedaba1835bb44cca9207e0748ba83522..18de6c8c5b32c5e14fb8c0fc24d3b8564a451acf 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/stringifiers.js
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/stringifiers.js
>@@ -2,7 +2,7 @@
>  * Runs tests for <http://heycam.github.io/webidl/#es-stringifier>.
>  * @param {Object} aObject - object to test
>  * @param {string} aAttribute - IDL attribute name that is annotated with `stringifier`
>- * @param {boolean} aIsUnforgeable - whether the IDL attribute is `[Unforgeable]`
>+ * @param {boolean} aIsUnforgeable - whether the IDL attribute is `[LegacyUnforgeable]`
>  */
> function test_stringifier_attribute(aObject, aAttribute, aIsUnforgeable) {
>   // Step 1.
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/common/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/common/w3c-import.log
>index 3070152c8a4b854fecd081cd74999d8180f760f8..4b2732e2501e37bb07f3167a2d7ca38400f8fe51 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/common/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/common/w3c-import.log
>@@ -20,6 +20,7 @@ List of files:
> /LayoutTests/imported/w3c/web-platform-tests/common/PrefixedPostMessage.js
> /LayoutTests/imported/w3c/web-platform-tests/common/PrefixedPostMessage.js.headers
> /LayoutTests/imported/w3c/web-platform-tests/common/README.md
>+/LayoutTests/imported/w3c/web-platform-tests/common/__init__.py
> /LayoutTests/imported/w3c/web-platform-tests/common/arrays.js
> /LayoutTests/imported/w3c/web-platform-tests/common/blank.html
> /LayoutTests/imported/w3c/web-platform-tests/common/domain-setter.sub.html
>@@ -41,6 +42,7 @@ List of files:
> /LayoutTests/imported/w3c/web-platform-tests/common/rendering-utils.js
> /LayoutTests/imported/w3c/web-platform-tests/common/sab.js
> /LayoutTests/imported/w3c/web-platform-tests/common/slow.py
>+/LayoutTests/imported/w3c/web-platform-tests/common/square.png
> /LayoutTests/imported/w3c/web-platform-tests/common/stringifiers.js
> /LayoutTests/imported/w3c/web-platform-tests/common/stringifiers.js.headers
> /LayoutTests/imported/w3c/web-platform-tests/common/subset-tests-by-key.js
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/META.yml b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/META.yml
>new file mode 100644
>index 0000000000000000000000000000000000000000..cf5525ae1157f7e5d3fe57b3856735b15c91c5d1
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/META.yml
>@@ -0,0 +1 @@
>+spec: https://webassembly.github.io/spec/js-api/
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any-expected.txt
>index e0b9a35edca073aeedbeda2a6891b64d5bfc0f8a..50647c253df959253b2dec39bedca39d6fe7cb03 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any-expected.txt
>@@ -13,6 +13,16 @@ FAIL getter order for imports object: BufferSource argument assert_array_equals:
> FAIL getter order for imports object: Module argument assert_array_equals: expected property 1 to be "global1 getter" but got "memory getter" (expected array ["module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "memory getter", "module getter", "global2 getter"] got ["module getter", "memory getter", "module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "global2 getter"])
> PASS imports: BufferSource argument
> PASS imports: Module argument
>+PASS imports with empty module names: BufferSource argument
>+PASS imports with empty module names: Module argument
>+PASS imports with empty names: BufferSource argument
>+PASS imports with empty names: Module argument
>+PASS exports with empty name: function: BufferSource argument
>+PASS exports with empty name: function: Module argument
>+PASS exports with empty name: table: BufferSource argument
>+PASS exports with empty name: table: Module argument
>+PASS exports with empty name: global: BufferSource argument
>+PASS exports with empty name: global: Module argument
> PASS No imports: BufferSource argument
> PASS No imports: Module argument
> PASS exports and imports: BufferSource argument
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any.worker-expected.txt
>index e0b9a35edca073aeedbeda2a6891b64d5bfc0f8a..50647c253df959253b2dec39bedca39d6fe7cb03 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/constructor/instantiate.any.worker-expected.txt
>@@ -13,6 +13,16 @@ FAIL getter order for imports object: BufferSource argument assert_array_equals:
> FAIL getter order for imports object: Module argument assert_array_equals: expected property 1 to be "global1 getter" but got "memory getter" (expected array ["module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "memory getter", "module getter", "global2 getter"] got ["module getter", "memory getter", "module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "global2 getter"])
> PASS imports: BufferSource argument
> PASS imports: Module argument
>+PASS imports with empty module names: BufferSource argument
>+PASS imports with empty module names: Module argument
>+PASS imports with empty names: BufferSource argument
>+PASS imports with empty names: Module argument
>+PASS exports with empty name: function: BufferSource argument
>+PASS exports with empty name: function: Module argument
>+PASS exports with empty name: table: BufferSource argument
>+PASS exports with empty name: table: Module argument
>+PASS exports with empty name: global: BufferSource argument
>+PASS exports with empty name: global: Module argument
> PASS No imports: BufferSource argument
> PASS No imports: Module argument
> PASS exports and imports: BufferSource argument
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..ccf6f559384dd1dfd25f8a00c225cf6dacd98751
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any-expected.txt
>@@ -0,0 +1,15 @@
>+
>+FAIL i32, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL i32, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL i64, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL i64, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f32, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f32, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f64, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f64, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL anyref, mutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL anyref, immutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL funcref, mutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL funcref, immutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL key ordering undefined is not an object (evaluating 'Object.getOwnPropertyNames(myglobal.type)')
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.js
>new file mode 100644
>index 0000000000000000000000000000000000000000..318b1ac578cac6051ea23ecfbb6525fffb325501
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.js
>@@ -0,0 +1,64 @@
>+// META: global=window,dedicatedworker,jsshell
>+// META: script=/wasm/jsapi/assertions.js
>+
>+function assert_type(argument) {
>+    const myglobal = new WebAssembly.Global(argument);
>+
>+    assert_equals(myglobal.type.value, argument.value);
>+    assert_equals(myglobal.type.mutable, argument.mutable);
>+}
>+
>+test(() => {
>+    assert_type({ "value": "i32", "mutable": true});
>+}, "i32, mutable");
>+
>+test(() => {
>+    assert_type({ "value": "i32", "mutable": false});
>+}, "i32, immutable");
>+
>+test(() => {
>+    assert_type({ "value": "i64", "mutable": true});
>+}, "i64, mutable");
>+
>+test(() => {
>+    assert_type({ "value": "i64", "mutable": false});
>+}, "i64, immutable");
>+
>+test(() => {
>+    assert_type({ "value": "f32", "mutable": true});
>+}, "f32, mutable");
>+
>+test(() => {
>+    assert_type({ "value": "f32", "mutable": false});
>+}, "f32, immutable");
>+
>+test(() => {
>+    assert_type({ "value": "f64", "mutable": true});
>+}, "f64, mutable");
>+
>+test(() => {
>+    assert_type({ "value": "f64", "mutable": false});
>+}, "f64, immutable");
>+
>+test(() => {
>+    assert_type({"value": "externref", "mutable": true})
>+}, "anyref, mutable")
>+
>+test(() => {
>+    assert_type({"value": "externref", "mutable": false})
>+}, "anyref, immutable")
>+
>+test(() => {
>+    assert_type({"value": "funcref", "mutable": true})
>+}, "funcref, mutable")
>+
>+test(() => {
>+    assert_type({"value": "funcref", "mutable": false})
>+}, "funcref, immutable")
>+
>+test(() => {
>+    const myglobal = new WebAssembly.Global({"value": "i32", "mutable": true});
>+    const propertyNames = Object.getOwnPropertyNames(myglobal.type);
>+    assert_equals(propertyNames[0], "mutable");
>+    assert_equals(propertyNames[1], "value");
>+}, "key ordering");
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.worker-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..ccf6f559384dd1dfd25f8a00c225cf6dacd98751
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.worker-expected.txt
>@@ -0,0 +1,15 @@
>+
>+FAIL i32, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL i32, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL i64, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL i64, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f32, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f32, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f64, mutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL f64, immutable undefined is not an object (evaluating 'myglobal.type.value')
>+FAIL anyref, mutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL anyref, immutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL funcref, mutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL funcref, immutable WebAssembly.Global expects its 'value' field to be the string 'i32', 'i64', 'f32', or 'f64'
>+FAIL key ordering undefined is not an object (evaluating 'Object.getOwnPropertyNames(myglobal.type)')
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.worker.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.worker.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.worker.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/w3c-import.log
>index 418ebdda72a16972d6bd43a204a2f6832d9fdc3a..e527eb5f6ea41014f8c4cd78aca39540e18b37ce 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/w3c-import.log
>@@ -16,5 +16,6 @@ None
> List of files:
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/constructor.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/toString.any.js
>+/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/type.tentative.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/value-get-set.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/global/valueOf.any.js
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any-expected.txt
>index ba38859fc37a08541593197b54957039bab308bc..5738d74822ea1999ce0252923c86231f7c929488 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any-expected.txt
>@@ -9,6 +9,11 @@ PASS Empty module with undefined imports argument
> PASS Empty module with empty imports argument
> FAIL getter order for imports object assert_array_equals: expected property 1 to be "global1 getter" but got "memory getter" (expected array ["module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "memory getter", "module getter", "global2 getter"] got ["module getter", "memory getter", "module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "global2 getter"])
> PASS imports
>+PASS imports with empty module names
>+PASS imports with empty names
>+PASS exports with empty name: function
>+PASS exports with empty name: table
>+PASS exports with empty name: global
> PASS No imports
> PASS exports and imports
> PASS i64 exports and imports
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any.worker-expected.txt
>index ba38859fc37a08541593197b54957039bab308bc..5738d74822ea1999ce0252923c86231f7c929488 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instance/constructor.any.worker-expected.txt
>@@ -9,6 +9,11 @@ PASS Empty module with undefined imports argument
> PASS Empty module with empty imports argument
> FAIL getter order for imports object assert_array_equals: expected property 1 to be "global1 getter" but got "memory getter" (expected array ["module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "memory getter", "module getter", "global2 getter"] got ["module getter", "memory getter", "module getter", "global1 getter", "module2 getter", "global3 getter", "module getter", "global2 getter"])
> PASS imports
>+PASS imports with empty module names
>+PASS imports with empty names
>+PASS exports with empty name: function
>+PASS exports with empty name: table
>+PASS exports with empty name: global
> PASS No imports
> PASS exports and imports
> PASS i64 exports and imports
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instanceTestFactory.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instanceTestFactory.js
>index 86f593f46f8c6c159ce2f5a6bc39b0aa5b6eb189..ac468947ec22e29310d0714cb7dfa0972893477d 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instanceTestFactory.js
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/instanceTestFactory.js
>@@ -126,6 +126,134 @@ get global3() {
>     }
>   ],
> 
>+  [
>+    "imports with empty module names",
>+    function() {
>+      const builder = new WasmModuleBuilder();
>+
>+      builder.addImport("", "fn", kSig_v_v);
>+      builder.addImportedGlobal("", "global", kWasmI32);
>+      builder.addImportedMemory("", "memory", 0, 128);
>+      builder.addImportedTable("", "table", 0, 128);
>+
>+      const buffer = builder.toBuffer();
>+      const imports = {
>+        "": {
>+          "fn": function() {},
>+          "global": 0,
>+          "memory": new WebAssembly.Memory({ "initial": 64, maximum: 128 }),
>+          "table": new WebAssembly.Table({ "element": "anyfunc", "initial": 64, maximum: 128 }),
>+        },
>+      };
>+
>+      return {
>+        buffer,
>+        args: [imports],
>+        exports: {},
>+        verify: () => {},
>+      };
>+    }
>+  ],
>+
>+  [
>+    "imports with empty names",
>+    function() {
>+      const builder = new WasmModuleBuilder();
>+
>+      builder.addImport("a", "", kSig_v_v);
>+      builder.addImportedGlobal("b", "", kWasmI32);
>+      builder.addImportedMemory("c", "", 0, 128);
>+      builder.addImportedTable("d", "", 0, 128);
>+
>+      const buffer = builder.toBuffer();
>+      const imports = {
>+        "a": { "": function() {} },
>+        "b": { "": 0 },
>+        "c": { "": new WebAssembly.Memory({ "initial": 64, maximum: 128 }) },
>+        "d": { "": new WebAssembly.Table({ "element": "anyfunc", "initial": 64, maximum: 128 }) },
>+      };
>+
>+      return {
>+        buffer,
>+        args: [imports],
>+        exports: {},
>+        verify: () => {},
>+      };
>+    }
>+  ],
>+
>+  [
>+    "exports with empty name: function",
>+    function() {
>+      const builder = new WasmModuleBuilder();
>+
>+      builder
>+        .addFunction("", kSig_v_d)
>+        .addBody([])
>+        .exportFunc();
>+
>+      const buffer = builder.toBuffer();
>+
>+      const exports = {
>+        "": { "kind": "function", "name": "0", "length": 1 },
>+      };
>+
>+      return {
>+        buffer,
>+        args: [],
>+        exports,
>+        verify: () => {},
>+      };
>+    }
>+  ],
>+
>+  [
>+    "exports with empty name: table",
>+    function() {
>+      const builder = new WasmModuleBuilder();
>+
>+      builder.setTableBounds(1);
>+      builder.addExportOfKind("", kExternalTable, 0);
>+
>+      const buffer = builder.toBuffer();
>+
>+      const exports = {
>+        "": { "kind": "table", "length": 1 },
>+      };
>+
>+      return {
>+        buffer,
>+        args: [],
>+        exports,
>+        verify: () => {},
>+      };
>+    }
>+  ],
>+
>+  [
>+    "exports with empty name: global",
>+    function() {
>+      const builder = new WasmModuleBuilder();
>+
>+      builder.addGlobal(kWasmI32, true)
>+        .exportAs("")
>+        .init = 7;
>+
>+      const buffer = builder.toBuffer();
>+
>+      const exports = {
>+        "": { "kind": "global", "value": 7 },
>+      };
>+
>+      return {
>+        buffer,
>+        args: [],
>+        exports,
>+        verify: () => {},
>+      };
>+    }
>+  ],
>+
>   [
>     "No imports",
>     function() {
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..492fd364dc009c62a03596b1657010da9a2621f5
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any-expected.txt
>@@ -0,0 +1,8 @@
>+
>+FAIL Zero initial, no maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL Non-zero initial, no maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL Zero maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL None-zero maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL non-shared memory undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL shared memory undefined is not an object (evaluating 'memory.type.minimum')
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.js
>new file mode 100644
>index 0000000000000000000000000000000000000000..efe9e2a37deb7bb6ef841e9809eee781c9effb9f
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.js
>@@ -0,0 +1,36 @@
>+// META: global=window,dedicatedworker,jsshell
>+// META: script=/wasm/jsapi/assertions.js
>+
>+function assert_type(argument) {
>+    const memory = new WebAssembly.Memory(argument);
>+
>+    assert_equals(memory.type.minimum, argument.minimum);
>+    assert_equals(memory.type.maximum, argument.maximum);
>+    if (argument.shared !== undefined) {
>+        assert_equals(memory.type.shared, argument.shared);
>+    }
>+}
>+
>+test(() => {
>+    assert_type({ "minimum": 0 });
>+}, "Zero initial, no maximum");
>+
>+test(() => {
>+    assert_type({ "minimum": 5 });
>+}, "Non-zero initial, no maximum");
>+
>+test(() => {
>+    assert_type({ "minimum": 0, "maximum": 0 });
>+}, "Zero maximum");
>+
>+test(() => {
>+    assert_type({ "minimum": 0, "maximum": 5 });
>+}, "None-zero maximum");
>+
>+test(() => {
>+    assert_type({ "minimum": 0, "maximum": 10,  "shared": false});
>+}, "non-shared memory");
>+
>+test(() => {
>+    assert_type({ "minimum": 0, "maximum": 10, "shared": true});
>+}, "shared memory");
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..492fd364dc009c62a03596b1657010da9a2621f5
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker-expected.txt
>@@ -0,0 +1,8 @@
>+
>+FAIL Zero initial, no maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL Non-zero initial, no maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL Zero maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL None-zero maximum undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL non-shared memory undefined is not an object (evaluating 'memory.type.minimum')
>+FAIL shared memory undefined is not an object (evaluating 'memory.type.minimum')
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.worker.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/w3c-import.log
>index 913d4566571143464a02ade7b96e8d828a79cda1..4827c26e78c70661960feb62524cc1bf9013cebe 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/w3c-import.log
>@@ -21,3 +21,4 @@ List of files:
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/constructor.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/grow.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/toString.any.js
>+/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/memory/type.tentative.any.js
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any-expected.txt
>index 3a857cd815756d4bf682c3c1573c540cc1567d08..09c22096854b09db08f38e1c2bfcce62cc386711 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any-expected.txt
>@@ -2,8 +2,12 @@
> PASS Missing arguments
> PASS Non-Module arguments
> PASS Branding
>+PASS Return type
> PASS Empty module
> PASS Empty module: array caching
> PASS exports
>+PASS exports with empty name: function
>+PASS exports with empty name: table
>+PASS exports with empty name: global
> PASS Stray argument
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.js
>index 60b2c04f436968ac11557860275d75bc89e49e3d..40a3935a4a23ba9028a4eccd44ad3baf07c5b1da 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.js
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.js
>@@ -75,6 +75,12 @@ function assert_exports(exports, expected) {
>   }
> }, "Branding");
> 
>+test(() => {
>+  const module = new WebAssembly.Module(emptyModuleBinary);
>+  const exports = WebAssembly.Module.exports(module);
>+  assert_true(Array.isArray(exports));
>+}, "Return type");
>+
> test(() => {
>   const module = new WebAssembly.Module(emptyModuleBinary);
>   const exports = WebAssembly.Module.exports(module);
>@@ -124,6 +130,54 @@ function assert_exports(exports, expected) {
>   assert_exports(exports, expected);
> }, "exports");
> 
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+
>+  builder
>+    .addFunction("", kSig_v_v)
>+    .addBody([])
>+    .exportFunc();
>+
>+  const buffer = builder.toBuffer()
>+  const module = new WebAssembly.Module(buffer);
>+  const exports = WebAssembly.Module.exports(module);
>+  const expected = [
>+    { "kind": "function", "name": "" },
>+  ];
>+  assert_exports(exports, expected);
>+}, "exports with empty name: function");
>+
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+
>+  builder.setTableBounds(1);
>+  builder.addExportOfKind("", kExternalTable, 0);
>+
>+  const buffer = builder.toBuffer()
>+  const module = new WebAssembly.Module(buffer);
>+  const exports = WebAssembly.Module.exports(module);
>+  const expected = [
>+    { "kind": "table", "name": "" },
>+  ];
>+  assert_exports(exports, expected);
>+}, "exports with empty name: table");
>+
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+
>+  builder.addGlobal(kWasmI32, true)
>+    .exportAs("")
>+    .init = 7;
>+
>+  const buffer = builder.toBuffer()
>+  const module = new WebAssembly.Module(buffer);
>+  const exports = WebAssembly.Module.exports(module);
>+  const expected = [
>+    { "kind": "global", "name": "" },
>+  ];
>+  assert_exports(exports, expected);
>+}, "exports with empty name: global");
>+
> test(() => {
>   const module = new WebAssembly.Module(emptyModuleBinary);
>   const exports = WebAssembly.Module.exports(module, {});
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.worker-expected.txt
>index 3a857cd815756d4bf682c3c1573c540cc1567d08..09c22096854b09db08f38e1c2bfcce62cc386711 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/exports.any.worker-expected.txt
>@@ -2,8 +2,12 @@
> PASS Missing arguments
> PASS Non-Module arguments
> PASS Branding
>+PASS Return type
> PASS Empty module
> PASS Empty module: array caching
> PASS exports
>+PASS exports with empty name: function
>+PASS exports with empty name: table
>+PASS exports with empty name: global
> PASS Stray argument
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any-expected.txt
>index 5493510f1fd5d56885e22361de97f6bb1ba33037..05833be39e56d834785d34f4316e2002d60cfc4f 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any-expected.txt
>@@ -6,5 +6,8 @@ PASS Return type
> PASS Empty module
> PASS Empty module: array caching
> PASS imports
>+PASS imports with empty module name
>+PASS imports with empty names
>+PASS imports with empty module names and names
> PASS Stray argument
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.js
>index d6754c9efbdc44cd963708f5b751f1546ddfcd18..ec550ce6c41af1dd958d2a981768da215368f27e 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.js
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.js
>@@ -118,6 +118,66 @@ function assert_imports(imports, expected) {
>   assert_imports(imports, expected);
> }, "imports");
> 
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+
>+  builder.addImport("", "fn", kSig_v_v);
>+  builder.addImportedGlobal("", "global", kWasmI32);
>+  builder.addImportedMemory("", "memory", 0, 128);
>+  builder.addImportedTable("", "table", 0, 128);
>+
>+  const buffer = builder.toBuffer()
>+  const module = new WebAssembly.Module(buffer);
>+  const imports = WebAssembly.Module.imports(module);
>+  const expected = [
>+    { "module": "", "kind": "function", "name": "fn" },
>+    { "module": "", "kind": "global", "name": "global" },
>+    { "module": "", "kind": "memory", "name": "memory" },
>+    { "module": "", "kind": "table", "name": "table" },
>+  ];
>+  assert_imports(imports, expected);
>+}, "imports with empty module name");
>+
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+
>+  builder.addImport("a", "", kSig_v_v);
>+  builder.addImportedGlobal("b", "", kWasmI32);
>+  builder.addImportedMemory("c", "", 0, 128);
>+  builder.addImportedTable("d", "", 0, 128);
>+
>+  const buffer = builder.toBuffer()
>+  const module = new WebAssembly.Module(buffer);
>+  const imports = WebAssembly.Module.imports(module);
>+  const expected = [
>+    { "module": "a", "kind": "function", "name": "" },
>+    { "module": "b", "kind": "global", "name": "" },
>+    { "module": "c", "kind": "memory", "name": "" },
>+    { "module": "d", "kind": "table", "name": "" },
>+  ];
>+  assert_imports(imports, expected);
>+}, "imports with empty names");
>+
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+
>+  builder.addImport("", "", kSig_v_v);
>+  builder.addImportedGlobal("", "", kWasmI32);
>+  builder.addImportedMemory("", "", 0, 128);
>+  builder.addImportedTable("", "", 0, 128);
>+
>+  const buffer = builder.toBuffer()
>+  const module = new WebAssembly.Module(buffer);
>+  const imports = WebAssembly.Module.imports(module);
>+  const expected = [
>+    { "module": "", "kind": "function", "name": "" },
>+    { "module": "", "kind": "global", "name": "" },
>+    { "module": "", "kind": "memory", "name": "" },
>+    { "module": "", "kind": "table", "name": "" },
>+  ];
>+  assert_imports(imports, expected);
>+}, "imports with empty module names and names");
>+
> test(() => {
>   const module = new WebAssembly.Module(emptyModuleBinary);
>   const imports = WebAssembly.Module.imports(module, {});
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.worker-expected.txt
>index 5493510f1fd5d56885e22361de97f6bb1ba33037..05833be39e56d834785d34f4316e2002d60cfc4f 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/module/imports.any.worker-expected.txt
>@@ -6,5 +6,8 @@ PASS Return type
> PASS Empty module
> PASS Empty module: array caching
> PASS imports
>+PASS imports with empty module name
>+PASS imports with empty names
>+PASS imports with empty module names and names
> PASS Stray argument
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..f0fc905693c249c7566d5a67bf500f1c727af9ed
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any-expected.txt
>@@ -0,0 +1,8 @@
>+
>+FAIL initialize externref table with default value assert_equals: expected object "[object Object]" but got null
>+PASS initialize table with a wrong element value
>+FAIL initialize anyfunc table with default value assert_equals: expected (function) function "function 0() {
>+    [native code]
>+}" but got (object) null
>+FAIL initialize anyfunc table with a bad default value assert_throws_js: function "() => new WebAssembly.Table(argument, {})" did not throw
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.js
>new file mode 100644
>index 0000000000000000000000000000000000000000..35db2c73599b945b6b8843f3747f2d4212ced0f0
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.js
>@@ -0,0 +1,49 @@
>+// META: global=window,dedicatedworker,jsshell
>+// META: script=assertions.js
>+// META: script=/wasm/jsapi/wasm-constants.js
>+// META: script=/wasm/jsapi/wasm-module-builder.js
>+
>+// Test cases for changes to the WebAssembly.Table constructor API that
>+// come in with the reftypes proposal: the API takes a default argument, which
>+// is used as an initializing value for the WebAssembly.Table.
>+//
>+// See:
>+//   https://webassembly.github.io/reference-types/js-api/index.html#tables
>+
>+test(() => {
>+  const testObject = {};
>+  const argument = { "element": "externref", "initial": 3 };
>+  const table = new WebAssembly.Table(argument, testObject);
>+  assert_equals(table.length, 3);
>+  assert_equals(table.get(0), testObject);
>+  assert_equals(table.get(1), testObject);
>+  assert_equals(table.get(2), testObject);
>+}, "initialize externref table with default value");
>+
>+test(() => {
>+  const argument = { "element": "i32", "initial": 3 };
>+  assert_throws_js(TypeError, () => new WebAssembly.Table(argument));
>+}, "initialize table with a wrong element value");
>+
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+  builder
>+    .addFunction("fn", kSig_v_v)
>+    .addBody([])
>+    .exportFunc();
>+  const bin = builder.toBuffer();
>+  const fn = new WebAssembly.Instance(new WebAssembly.Module(bin)).exports.fn;
>+  const argument = { "element": "anyfunc", "initial": 3 };
>+  const table = new WebAssembly.Table(argument, fn);
>+  assert_equals(table.length, 3);
>+  assert_equals(table.get(0), fn);
>+  assert_equals(table.get(1), fn);
>+  assert_equals(table.get(2), fn);
>+}, "initialize anyfunc table with default value");
>+
>+test(() => {
>+  const argument = { "element": "anyfunc", "initial": 3 };
>+  assert_throws_js(TypeError, () => new WebAssembly.Table(argument, {}));
>+  assert_throws_js(TypeError, () => new WebAssembly.Table(argument, "cannot be used as a wasm function"));
>+  assert_throws_js(TypeError, () => new WebAssembly.Table(argument, 37));
>+}, "initialize anyfunc table with a bad default value");
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..8666cea2ee8d7150bf53c1b680df3a375b5a0a50
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker-expected.txt
>@@ -0,0 +1,5 @@
>+CONSOLE MESSAGE: NetworkError: Response is not 2xx
>+
>+Harness Error (FAIL), message = NetworkError: Response is not 2xx
>+
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.worker.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..2c7f36670aa94be9b24f3e7916c8cda318a448ce
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any-expected.txt
>@@ -0,0 +1,6 @@
>+
>+FAIL Arguments for anyfunc table set assert_equals: expected (function) function "function 0() {
>+    [native code]
>+}" but got (object) null
>+FAIL Arguments for externref table set assert_equals: expected object "[object Object]" but got null
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.js
>new file mode 100644
>index 0000000000000000000000000000000000000000..83b36a32415cf0981514617f1e67acee625c6c4b
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.js
>@@ -0,0 +1,50 @@
>+// META: global=window,dedicatedworker,jsshell
>+// META: script=assertions.js
>+// META: script=/wasm/jsapi/wasm-constants.js
>+// META: script=/wasm/jsapi/wasm-module-builder.js
>+
>+// Test cases for changes to the WebAssembly.Table.prototype.set() API that
>+// come in with the reftypes proposal: the API makes the second argument optional and
>+// if it is missing we should use DefaultValue of the table's element type.
>+//
>+// See:
>+//   https://webassembly.github.io/reference-types/js-api/index.html#tables
>+
>+test(() => {
>+  const builder = new WasmModuleBuilder();
>+  builder
>+    .addFunction("fn", kSig_v_v)
>+    .addBody([])
>+    .exportFunc();
>+  const bin = builder.toBuffer();
>+  const fn = new WebAssembly.Instance(new WebAssembly.Module(bin)).exports.fn;
>+
>+  const argument = { "element": "anyfunc", "initial": 1 };
>+  const table = new WebAssembly.Table(argument, fn);
>+
>+  assert_equals(table.get(0), fn);
>+  table.set(0);
>+  assert_equals(table.get(0), null);
>+
>+  table.set(0, fn);
>+  assert_equals(table.get(0), fn);
>+
>+  assert_throws_js(TypeError, () => table.set(0, {}));
>+  assert_throws_js(TypeError, () => table.set(0, 37));
>+}, "Arguments for anyfunc table set");
>+
>+test(() => {
>+  const testObject = {};
>+  const argument = { "element": "externref", "initial": 1 };
>+  const table = new WebAssembly.Table(argument, testObject);
>+
>+  assert_equals(table.get(0), testObject);
>+  table.set(0);
>+  assert_equals(table.get(0), undefined);
>+
>+  table.set(0, testObject);
>+  assert_equals(table.get(0), testObject);
>+
>+  table.set(0, 37);
>+  assert_equals(table.get(0), 37);
>+}, "Arguments for externref table set");
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..8666cea2ee8d7150bf53c1b680df3a375b5a0a50
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker-expected.txt
>@@ -0,0 +1,5 @@
>+CONSOLE MESSAGE: NetworkError: Response is not 2xx
>+
>+Harness Error (FAIL), message = NetworkError: Response is not 2xx
>+
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.worker.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/w3c-import.log
>index 046473e2384d3914876048f1411ae23b833a384c..3f4fa37eaba2c38e3f32467ef2f521fd59120497 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/w3c-import.log
>@@ -15,10 +15,12 @@ None
> ------------------------------------------------------------------------
> List of files:
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/assertions.js
>+/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-reftypes.tentative.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor-types.tentative.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/constructor.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/get-set.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/grow-reftypes.tentative.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/grow.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/length.any.js
>+/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/set-reftypes.tentative.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/table/toString.any.js
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/w3c-import.log
>index acc10284ad430d0b7a172ff5fa17f3ef9587c0d4..7ec312bba7852dbb646264120bf12acb4fa637d7 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/w3c-import.log
>@@ -14,6 +14,7 @@ Property values requiring vendor prefixes:
> None
> ------------------------------------------------------------------------
> List of files:
>+/LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/META.yml
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/assertions.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/bad-imports.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/jsapi/error-interfaces-no-symbol-tostringtag.js
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/META.yml b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/META.yml
>new file mode 100644
>index 0000000000000000000000000000000000000000..69715cd7c8dcf53d95af41fdd5396e4ea34dc2ce
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/META.yml
>@@ -0,0 +1 @@
>+spec: https://webassembly.github.io/spec/web-api/
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any-expected.txt
>index c537bf104f048a0b46e453d3a510571298d9f0aa..77b90e5f8f1fe8eb9ec26870b15f48bf6050b198 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any-expected.txt
>@@ -4,6 +4,11 @@ FAIL Empty module with undefined imports argument promise_test: Unhandled reject
> FAIL Empty module with empty imports argument promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL getter order for imports object promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL imports with empty module names promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL imports with empty names promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL exports with empty name: function promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL exports with empty name: table promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL exports with empty name: global promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL No imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL exports and imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL i64 exports and imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any.worker-expected.txt
>index c537bf104f048a0b46e453d3a510571298d9f0aa..77b90e5f8f1fe8eb9ec26870b15f48bf6050b198 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any.worker-expected.txt
>@@ -4,6 +4,11 @@ FAIL Empty module with undefined imports argument promise_test: Unhandled reject
> FAIL Empty module with empty imports argument promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL getter order for imports object promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL imports with empty module names promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL imports with empty names promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL exports with empty name: function promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL exports with empty name: table promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>+FAIL exports with empty name: global promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL No imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL exports and imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
> FAIL i64 exports and imports promise_test: Unhandled rejection with value: object "TypeError: WebAssembly.instantiateStreaming is not a function. (In 'WebAssembly.instantiateStreaming(response, ...args)', 'WebAssembly.instantiateStreaming' is undefined)"
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any-expected.txt
>index 13eccb2ad18a676f8cf5511fee69d3cb37d109c6..00402bf6c25f6822797bdc8428d9e63772354d53 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any-expected.txt
>@@ -1,4 +1,6 @@
> 
>-FAIL Invalid code: compileStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>-FAIL Invalid code: instantiateStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0x0000): compileStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0xCAFE): compileStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0x0000): instantiateStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0xCAFE): instantiateStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.js
>index 752519392a953fdc314d6421f2bcb91856434534..37373d49971a3d89b04720cc10669f4929fc9142 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.js
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.js
>@@ -7,9 +7,15 @@
> });
> 
> for (const method of ["compileStreaming", "instantiateStreaming"]) {
>+  promise_test(t => {
>+    const buffer = new Uint8Array(Array.from(emptyModuleBinary).concat([0, 0]));
>+    const response = new Response(buffer, { headers: { "Content-Type": "application/wasm" } });
>+    return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly[method](response));
>+  }, `Invalid code (0x0000): ${method}`);
>+
>   promise_test(t => {
>     const buffer = new Uint8Array(Array.from(emptyModuleBinary).concat([0xCA, 0xFE]));
>     const response = new Response(buffer, { headers: { "Content-Type": "application/wasm" } });
>     return promise_rejects_js(t, WebAssembly.CompileError, WebAssembly[method](response));
>-  }, `Invalid code: ${method}`);
>+  }, `Invalid code (0xCAFE): ${method}`);
> }
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.worker-expected.txt
>index 13eccb2ad18a676f8cf5511fee69d3cb37d109c6..00402bf6c25f6822797bdc8428d9e63772354d53 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.worker-expected.txt
>@@ -1,4 +1,6 @@
> 
>-FAIL Invalid code: compileStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>-FAIL Invalid code: instantiateStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0x0000): compileStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0xCAFE): compileStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0x0000): instantiateStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
>+FAIL Invalid code (0xCAFE): instantiateStreaming WebAssembly[method] is not a function. (In 'WebAssembly[method](response)', 'WebAssembly[method]' is undefined)
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..011c4d73dc797f1fd4532f70802709fe0a6805c4
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any-expected.txt
>@@ -0,0 +1,6 @@
>+
>+FAIL compileStreaming with Content-Type set late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+FAIL compileStreaming with Content-Type removed late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+FAIL instantiateStreaming with Content-Type set late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+FAIL instantiateStreaming with Content-Type removed late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.js b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.js
>new file mode 100644
>index 0000000000000000000000000000000000000000..354930517c73ea54162a655c2c12e93b40cc1a73
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.js
>@@ -0,0 +1,24 @@
>+// META: global=window,worker
>+// META: script=/wasm/jsapi/wasm-module-builder.js
>+
>+["compileStreaming", "instantiateStreaming"].forEach(method => {
>+  promise_test(async t => {
>+    const buffer = new WasmModuleBuilder().toBuffer();
>+    const argument = new Response(buffer, { headers: { "Content-Type": "test/test" } });
>+    argument.headers.set("Content-Type", "application/wasm");
>+    // This should resolve successfully
>+    await WebAssembly[method](argument);
>+    // Ensure body can only be read once
>+    return promise_rejects_js(t, TypeError, argument.blob());
>+  }, `${method} with Content-Type set late`);
>+
>+  promise_test(async t => {
>+    const buffer = new WasmModuleBuilder().toBuffer();
>+    const argument = new Response(buffer, { headers: { "Content-Type": "application/wasm" } });
>+    argument.headers.delete("Content-Type");
>+    // Ensure Wasm cannot be created
>+    await promise_rejects_js(t, TypeError, WebAssembly[method](argument));
>+    // This should resolve successfully
>+    await argument.arrayBuffer();
>+  }, `${method} with Content-Type removed late`);
>+});
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.worker-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..011c4d73dc797f1fd4532f70802709fe0a6805c4
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.worker-expected.txt
>@@ -0,0 +1,6 @@
>+
>+FAIL compileStreaming with Content-Type set late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+FAIL compileStreaming with Content-Type removed late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+FAIL instantiateStreaming with Content-Type set late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+FAIL instantiateStreaming with Content-Type removed late promise_test: Unhandled rejection with value: object "TypeError: WebAssembly[method] is not a function. (In 'WebAssembly[method](argument)', 'WebAssembly[method]' is undefined)"
>+
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.worker.html b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.worker.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..2382913528e693b3a5d56c660a45060980b548c3
>--- /dev/null
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.worker.html
>@@ -0,0 +1 @@
>+
>\ No newline at end of file
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/w3c-import.log b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/w3c-import.log
>index eaa8c7be725dae22786b73c0364c9ef26f6d5851..6b4e315614b6b1ede82c42533e72400077503c63 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/w3c-import.log
>+++ b/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/w3c-import.log
>@@ -14,6 +14,7 @@ Property values requiring vendor prefixes:
> None
> ------------------------------------------------------------------------
> List of files:
>+/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/META.yml
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/abort.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/body.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/contenttype.any.js
>@@ -24,6 +25,7 @@ List of files:
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/instantiateStreaming.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-args.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/invalid-code.any.js
>+/LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/modified-contenttype.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/origin.sub.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/rejected-arg.any.js
> /LayoutTests/imported/w3c/web-platform-tests/wasm/webapi/status.any.js

Flags:

mark.lam: review+
ews-feeder: commit-queue-

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