Attachment 317984 Details for Bug 175482 – Patch

[patch] Patch

bug-175482-20170811184703.patch (text/plain), 94.20 KB, created by Chris Dumez on 2017-08-11 18:47:04 PDT

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Creator: Chris Dumez

Created: 2017-08-11 18:47:04 PDT

Size: 94.20 KB

patch

obsolete

>Subversion Revision: 220550
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 85607d1ae3d944a2d4cb145708cf5149d4b1b34b..1b2617de602642e35b4ae17feec1781880487335 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,76 @@
>+2017-08-11  Chris Dumez  <cdumez@apple.com>
>+
>+        Implement quota limitation for keepalive Fetch requests
>+        https://bugs.webkit.org/show_bug.cgi?id=175482
>+
>+        Reviewed by Sam Weinig and Youenn Fablet.
>+
>+        Implement quota limitation for keepalive Fetch requests as per:
>+        - https://fetch.spec.whatwg.org/#http-network-or-cache-fetch (Step 9)
>+
>+        This partly works for Beacon as well, meaning that no Beacon with a body
>+        over 64Kb can be sent. However, we don't keep track about wether or not
>+        beacon loads are inflight or not.
>+
>+        Also update CachedResourceLoader::requestResource() so that the caller
>+        can get a ResourceError when it returns null. This is useful for both
>+        Fetch and Beacon to return better error messages.
>+
>+        Test: http/wpt/beacon/beacon-quota.html
>+
>+        * CMakeLists.txt:
>+        * Modules/beacon/NavigatorBeacon.cpp:
>+        (WebCore::NavigatorBeacon::sendBeacon):
>+        * Modules/fetch/FetchBodyOwner.cpp:
>+        (WebCore::FetchBodyOwner::BlobLoader::didReceiveResponse):
>+        (WebCore::FetchBodyOwner::BlobLoader::didFail):
>+        * Modules/fetch/FetchBodyOwner.h:
>+        * Modules/fetch/FetchLoader.cpp:
>+        (WebCore::FetchLoader::start):
>+        (WebCore::FetchLoader::didFail):
>+        * Modules/fetch/FetchLoaderClient.h:
>+        * Modules/fetch/FetchResponse.cpp:
>+        (WebCore::FetchResponse::BodyLoader::didFail):
>+        * Modules/fetch/FetchResponse.h:
>+        * WebCore.xcodeproj/project.pbxproj:
>+        * loader/DocumentThreadableLoader.cpp:
>+        (WebCore::DocumentThreadableLoader::loadRequest):
>+        * loader/cache/CachedResource.cpp:
>+        (WebCore::CachedResource::load):
>+        * loader/cache/CachedResource.h:
>+        (WebCore::CachedResource::isMainOrMediaOrIconOrRawResource const):
>+        * loader/cache/CachedResourceLoader.cpp:
>+        (WebCore::createResource):
>+        (WebCore::CachedResourceLoader::requestImage):
>+        (WebCore::CachedResourceLoader::requestFont):
>+        (WebCore::CachedResourceLoader::requestTextTrack):
>+        (WebCore::CachedResourceLoader::requestCSSStyleSheet):
>+        (WebCore::CachedResourceLoader::requestUserCSSStyleSheet):
>+        (WebCore::CachedResourceLoader::requestScript):
>+        (WebCore::CachedResourceLoader::requestXSLStyleSheet):
>+        (WebCore::CachedResourceLoader::requestSVGDocument):
>+        (WebCore::CachedResourceLoader::requestLinkResource):
>+        (WebCore::CachedResourceLoader::requestMedia):
>+        (WebCore::CachedResourceLoader::requestIcon):
>+        (WebCore::CachedResourceLoader::requestRawResource):
>+        (WebCore::CachedResourceLoader::requestBeaconResource):
>+        (WebCore::CachedResourceLoader::requestMainResource):
>+        (WebCore::CachedResourceLoader::requestResource):
>+        (WebCore::CachedResourceLoader::preload):
>+        * loader/cache/CachedResourceLoader.h:
>+        * loader/cache/KeepaliveRequestTracker.cpp: Added.
>+        (WebCore::KeepaliveRequestTracker::~KeepaliveRequestTracker):
>+        (WebCore::KeepaliveRequestTracker::canLoadRequest):
>+        (WebCore::KeepaliveRequestTracker::registerRequest):
>+        (WebCore::KeepaliveRequestTracker::responseReceived):
>+        (WebCore::KeepaliveRequestTracker::notifyFinished):
>+        (WebCore::KeepaliveRequestTracker::unregisterRequest):
>+        * loader/cache/KeepaliveRequestTracker.h: Added.
>+        * platform/network/FormData.cpp:
>+        (WebCore::FormDataElement::lengthInBytes const):
>+        (WebCore::FormData::lengthInBytes const):
>+        * platform/network/FormData.h:
>+
> 2017-08-10  Chris Dumez  <cdumez@apple.com>
> 
>         [Beacon] Do connect-src CSP check on redirects as well
>diff --git a/Source/WebCore/CMakeLists.txt b/Source/WebCore/CMakeLists.txt
>index 33cdd4c88dd539253c11156f656eef9cf636f1f6..34733487edac90379623c61e3e269292bdd37565 100644
>--- a/Source/WebCore/CMakeLists.txt
>+++ b/Source/WebCore/CMakeLists.txt
>@@ -2069,6 +2069,7 @@ set(WebCore_SOURCES
>     loader/cache/CachedSVGFont.cpp
>     loader/cache/CachedScript.cpp
>     loader/cache/CachedXSLStyleSheet.cpp
>+    loader/cache/KeepaliveRequestTracker.cpp
>     loader/cache/MemoryCache.cpp
> 
>     loader/icon/IconLoader.cpp
>diff --git a/Source/WebCore/Modules/beacon/NavigatorBeacon.cpp b/Source/WebCore/Modules/beacon/NavigatorBeacon.cpp
>index 2c1991bf7f56b68afa6d2419219cf2911ccf9119..8b2f5a7802a5099aa543214d4e871fca7883a08a 100644
>--- a/Source/WebCore/Modules/beacon/NavigatorBeacon.cpp
>+++ b/Source/WebCore/Modules/beacon/NavigatorBeacon.cpp
>@@ -73,7 +73,12 @@ ExceptionOr<bool> NavigatorBeacon::sendBeacon(Navigator&, Document& document, co
>                 options.mode = FetchOptions::Mode::NoCors;
>         }
>     }
>-    document.cachedResourceLoader().requestBeaconResource({ WTFMove(request), options });
>+    ResourceError error;
>+    if (!document.cachedResourceLoader().requestBeaconResource({ WTFMove(request), options }, &error)) {
>+        if (!error.isNull())
>+            document.addConsoleMessage(MessageSource::Network, MessageLevel::Error, error.localizedDescription());
>+        return false;
>+    }
>     return true;
> }
> 
>diff --git a/Source/WebCore/Modules/fetch/FetchBodyOwner.cpp b/Source/WebCore/Modules/fetch/FetchBodyOwner.cpp
>index 37d30f8c577dc0b1157f0421fd3e634006178247..6bc1d9ab2609ee87c7b5ad545b0b46f2448849b1 100644
>--- a/Source/WebCore/Modules/fetch/FetchBodyOwner.cpp
>+++ b/Source/WebCore/Modules/fetch/FetchBodyOwner.cpp
>@@ -32,6 +32,7 @@
> #include "FetchLoader.h"
> #include "HTTPParsers.h"
> #include "JSBlob.h"
>+#include "ResourceError.h"
> #include "ResourceResponse.h"
> 
> namespace WebCore {
>@@ -277,10 +278,10 @@ FetchBodyOwner::BlobLoader::BlobLoader(FetchBodyOwner& owner)
> void FetchBodyOwner::BlobLoader::didReceiveResponse(const ResourceResponse& response)
> {
>     if (response.httpStatusCode() != 200)
>-        didFail();
>+        didFail({ });
> }
> 
>-void FetchBodyOwner::BlobLoader::didFail()
>+void FetchBodyOwner::BlobLoader::didFail(const ResourceError&)
> {
>     // didFail might be called within FetchLoader::start call.
>     if (loader->isStarted())
>diff --git a/Source/WebCore/Modules/fetch/FetchBodyOwner.h b/Source/WebCore/Modules/fetch/FetchBodyOwner.h
>index c3213e972139300d4a51854c0559ab55014a955b..5b83d2671f0cf49f8135f7019d1bfcaec511c52f 100644
>--- a/Source/WebCore/Modules/fetch/FetchBodyOwner.h
>+++ b/Source/WebCore/Modules/fetch/FetchBodyOwner.h
>@@ -88,7 +88,7 @@ private:
>         // FetchLoaderClient API
>         void didReceiveResponse(const ResourceResponse&) final;
>         void didReceiveData(const char* data, size_t size) final { owner.blobChunk(data, size); }
>-        void didFail() final;
>+        void didFail(const ResourceError&) final;
>         void didSucceed() final { owner.blobLoadingSucceeded(); }
> 
>         FetchBodyOwner& owner;
>diff --git a/Source/WebCore/Modules/fetch/FetchLoader.cpp b/Source/WebCore/Modules/fetch/FetchLoader.cpp
>index e3a51f1ae84392bf30fc8b5d33531a09db85ccac..4c2bf83c433dd90647036f3cd3de2f82bec888d9 100644
>--- a/Source/WebCore/Modules/fetch/FetchLoader.cpp
>+++ b/Source/WebCore/Modules/fetch/FetchLoader.cpp
>@@ -35,6 +35,7 @@
> #include "FetchBody.h"
> #include "FetchLoaderClient.h"
> #include "FetchRequest.h"
>+#include "ResourceError.h"
> #include "ResourceRequest.h"
> #include "ScriptExecutionContext.h"
> #include "SecurityOrigin.h"
>@@ -48,7 +49,7 @@ void FetchLoader::start(ScriptExecutionContext& context, const Blob& blob)
> {
>     auto urlForReading = BlobURL::createPublicURL(context.securityOrigin());
>     if (urlForReading.isEmpty()) {
>-        m_client.didFail();
>+        m_client.didFail({ errorDomainWebKitInternal, 0, URL(), ASCIILiteral("Could not create URL for Blob") });
>         return;
>     }
> 
>@@ -88,7 +89,7 @@ void FetchLoader::start(ScriptExecutionContext& context, const FetchRequest& req
>     contentSecurityPolicy.upgradeInsecureRequestIfNeeded(fetchRequest, ContentSecurityPolicy::InsecureRequestType::Load);
> 
>     if (!context.shouldBypassMainWorldContentSecurityPolicy() && !contentSecurityPolicy.allowConnectToSource(fetchRequest.url())) {
>-        m_client.didFail();
>+        m_client.didFail({ errorDomainWebKitInternal, 0, fetchRequest.url(), ASCIILiteral("Not allowed by ContentSecurityPolicy"), ResourceError::Type::AccessControl });
>         return;
>     }
> 
>@@ -144,9 +145,9 @@ void FetchLoader::didFinishLoading(unsigned long)
>     m_client.didSucceed();
> }
> 
>-void FetchLoader::didFail(const ResourceError&)
>+void FetchLoader::didFail(const ResourceError& error)
> {
>-    m_client.didFail();
>+    m_client.didFail(error);
> }
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/Modules/fetch/FetchLoaderClient.h b/Source/WebCore/Modules/fetch/FetchLoaderClient.h
>index 195f1ef204f601f9f407fe8ef6ccdf878335ea77..cbff9bd91fcc8f3f14aa5680058603bc13637cb7 100644
>--- a/Source/WebCore/Modules/fetch/FetchLoaderClient.h
>+++ b/Source/WebCore/Modules/fetch/FetchLoaderClient.h
>@@ -32,6 +32,7 @@
> 
> namespace WebCore {
> 
>+class ResourceError;
> class ResourceResponse;
> 
> class FetchLoaderClient {
>@@ -43,7 +44,7 @@ public:
>     virtual void didReceiveData(const char*, size_t) { }
> 
>     virtual void didSucceed() = 0;
>-    virtual void didFail() = 0;
>+    virtual void didFail(const ResourceError&) = 0;
> };
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/Modules/fetch/FetchResponse.cpp b/Source/WebCore/Modules/fetch/FetchResponse.cpp
>index 68adb559fe9530f7456dc96f9884b7ffdd6a81be..22532c44050857141a89f193072ee07ff3deaa4f 100644
>--- a/Source/WebCore/Modules/fetch/FetchResponse.cpp
>+++ b/Source/WebCore/Modules/fetch/FetchResponse.cpp
>@@ -33,6 +33,7 @@
> #include "HTTPParsers.h"
> #include "JSBlob.h"
> #include "JSFetchResponse.h"
>+#include "ResourceError.h"
> #include "ScriptExecutionContext.h"
> 
> namespace WebCore {
>@@ -138,11 +139,11 @@ void FetchResponse::BodyLoader::didSucceed()
>     }
> }
> 
>-void FetchResponse::BodyLoader::didFail()
>+void FetchResponse::BodyLoader::didFail(const ResourceError& error)
> {
>     ASSERT(m_response.hasPendingActivity());
>     if (m_promise)
>-        std::exchange(m_promise, std::nullopt)->reject(TypeError);
>+        std::exchange(m_promise, std::nullopt)->reject(Exception { TypeError, String(error.localizedDescription()) });
> 
> #if ENABLE(STREAMS_API)
>     if (m_response.m_readableStreamSource) {
>diff --git a/Source/WebCore/Modules/fetch/FetchResponse.h b/Source/WebCore/Modules/fetch/FetchResponse.h
>index f9b02fb0e587ab4eb3d559794b391f79f5a1dc66..540e67b39ccd3adbd810b4bb763707621defcca9 100644
>--- a/Source/WebCore/Modules/fetch/FetchResponse.h
>+++ b/Source/WebCore/Modules/fetch/FetchResponse.h
>@@ -118,7 +118,7 @@ private:
>     private:
>         // FetchLoaderClient API
>         void didSucceed() final;
>-        void didFail() final;
>+        void didFail(const ResourceError&) final;
>         void didReceiveResponse(const ResourceResponse&) final;
>         void didReceiveData(const char*, size_t) final;
> 
>diff --git a/Source/WebCore/WebCore.xcodeproj/project.pbxproj b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>index 8aa57aded53af994d9ba67b9471e5b2c9a8774b3..edb17df374d2c76aed50450c4699b281f3ec6480 100644
>--- a/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>+++ b/Source/WebCore/WebCore.xcodeproj/project.pbxproj
>@@ -3457,6 +3457,8 @@
> 		839AAFED1A0C0C8D00605F99 /* HTMLWBRElement.h in Headers */ = {isa = PBXBuildFile; fileRef = 839AAFEB1A0C0C8D00605F99 /* HTMLWBRElement.h */; };
> 		83A4A9F91CE7FD8100709B00 /* JSXMLDocumentCustom.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 83A4A9F81CE7FD7E00709B00 /* JSXMLDocumentCustom.cpp */; };
> 		83B2D1751B8BCD6A00A02E47 /* NativeNodeFilter.h in Headers */ = {isa = PBXBuildFile; fileRef = 83E959E11B8BC22B004D9385 /* NativeNodeFilter.h */; settings = {ATTRIBUTES = (Private, ); }; };
>+		83B74EF51F3E0BF200996BC7 /* KeepaliveRequestTracker.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 83B74EF21F3E0BD700996BC7 /* KeepaliveRequestTracker.cpp */; };
>+		83B74EF61F3E0BF200996BC7 /* KeepaliveRequestTracker.h in Headers */ = {isa = PBXBuildFile; fileRef = 83B74EF31F3E0BD700996BC7 /* KeepaliveRequestTracker.h */; settings = {ATTRIBUTES = (Private, ); }; };
> 		83B9687B19F8AB83004EF7AF /* StyleBuilderConverter.h in Headers */ = {isa = PBXBuildFile; fileRef = 83B9687919F8AB83004EF7AF /* StyleBuilderConverter.h */; };
> 		83BB5C881D5D6F45005A71F4 /* AllDescendantsCollection.h in Headers */ = {isa = PBXBuildFile; fileRef = 83BB5C871D5D6F3A005A71F4 /* AllDescendantsCollection.h */; };
> 		83C05A5A1A686212007E5DEA /* StylePropertyShorthandFunctions.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 83C05A581A686212007E5DEA /* StylePropertyShorthandFunctions.cpp */; };
>@@ -11561,6 +11563,8 @@
> 		839AAFEA1A0C0C8D00605F99 /* HTMLWBRElement.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = HTMLWBRElement.cpp; sourceTree = "<group>"; };
> 		839AAFEB1A0C0C8D00605F99 /* HTMLWBRElement.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = HTMLWBRElement.h; sourceTree = "<group>"; };
> 		83A4A9F81CE7FD7E00709B00 /* JSXMLDocumentCustom.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = JSXMLDocumentCustom.cpp; sourceTree = "<group>"; };
>+		83B74EF21F3E0BD700996BC7 /* KeepaliveRequestTracker.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = KeepaliveRequestTracker.cpp; sourceTree = "<group>"; };
>+		83B74EF31F3E0BD700996BC7 /* KeepaliveRequestTracker.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = KeepaliveRequestTracker.h; sourceTree = "<group>"; };
> 		83B9687919F8AB83004EF7AF /* StyleBuilderConverter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StyleBuilderConverter.h; sourceTree = "<group>"; };
> 		83BB5C871D5D6F3A005A71F4 /* AllDescendantsCollection.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = AllDescendantsCollection.h; sourceTree = "<group>"; };
> 		83C05A581A686212007E5DEA /* StylePropertyShorthandFunctions.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = StylePropertyShorthandFunctions.cpp; sourceTree = "<group>"; };
>@@ -18603,12 +18607,12 @@
> 				5182C2521F3142500059BA7C /* JSServiceWorker.h */,
> 				5182C2511F3142500059BA7C /* JSServiceWorkerContainer.cpp */,
> 				5182C2541F3142500059BA7C /* JSServiceWorkerContainer.h */,
>-				51F175001F358B3600C74950 /* JSServiceWorkerUpdateViaCache.cpp */,
>-				51F175011F358B3600C74950 /* JSServiceWorkerUpdateViaCache.h */,
> 				5182C24E1F3142500059BA7C /* JSServiceWorkerGlobalScope.cpp */,
> 				5182C24D1F3142500059BA7C /* JSServiceWorkerGlobalScope.h */,
> 				5182C24F1F3142500059BA7C /* JSServiceWorkerRegistration.cpp */,
> 				5182C2501F3142500059BA7C /* JSServiceWorkerRegistration.h */,
>+				51F175001F358B3600C74950 /* JSServiceWorkerUpdateViaCache.cpp */,
>+				51F175011F358B3600C74950 /* JSServiceWorkerUpdateViaCache.h */,
> 			);
> 			name = ServiceWorkers;
> 			path = DerivedSources;
>@@ -22331,6 +22335,8 @@
> 				BCB16C0E0979C3BD00467741 /* CachedXSLStyleSheet.cpp */,
> 				BCB16C0F0979C3BD00467741 /* CachedXSLStyleSheet.h */,
> 				F587864902DE3A9A01EA4122 /* CachePolicy.h */,
>+				83B74EF21F3E0BD700996BC7 /* KeepaliveRequestTracker.cpp */,
>+				83B74EF31F3E0BD700996BC7 /* KeepaliveRequestTracker.h */,
> 				BCB16BFE0979C3BD00467741 /* MemoryCache.cpp */,
> 				BCB16BFF0979C3BD00467741 /* MemoryCache.h */,
> 			);
>@@ -26764,7 +26770,6 @@
> 				A584FE2C1863870F00843B10 /* CommandLineAPIModule.h in Headers */,
> 				A584FE2618637DAB00843B10 /* CommandLineAPIModuleSource.h in Headers */,
> 				6550B6A2099DF0270090D781 /* Comment.h in Headers */,
>-				511CA67E1F3905A60019E074 /* ServiceWorkerJob.h in Headers */,
> 				57E664FC1E73703300765536 /* CommonCryptoDERUtilities.h in Headers */,
> 				E1FE137518402A6700892F13 /* CommonCryptoUtilities.h in Headers */,
> 				0F60F32B1DFBB10700416D6C /* CommonVM.h in Headers */,
>@@ -27400,7 +27405,6 @@
> 				316BDBF71E762AD500DE0D5A /* GPUDepthStencilDescriptor.h in Headers */,
> 				316BDBF01E76292000DE0D5A /* GPUDepthStencilState.h in Headers */,
> 				316BDB861E6E0A2700DE0D5A /* GPUDevice.h in Headers */,
>-				51F174FE1F35899200C74950 /* WorkerType.h in Headers */,
> 				316BDBCD1E75F18400DE0D5A /* GPUDrawable.h in Headers */,
> 				316BDBFB1E762D0400DE0D5A /* GPUEnums.h in Headers */,
> 				316BDB951E70C89700DE0D5A /* GPUFunction.h in Headers */,
>@@ -27482,14 +27486,12 @@
> 				93F198E508245E59001E9ABC /* HTMLDocument.h in Headers */,
> 				977B3867122883E900B81FF8 /* HTMLDocumentParser.h in Headers */,
> 				93F198E608245E59001E9ABC /* HTMLElement.h in Headers */,
>-				51BEB6391F3B94B0005029B9 /* ServiceWorkerRegistrationOptions.h in Headers */,
> 				A17C81230F2A5CF7005DAAEB /* HTMLElementFactory.h in Headers */,
> 				977B37241228721700B81FF8 /* HTMLElementStack.h in Headers */,
> 				B562DB6017D3CD630010AF96 /* HTMLElementTypeHelpers.h in Headers */,
> 				A871D45C0A127CBC00B12A68 /* HTMLEmbedElement.h in Headers */,
> 				977B386A122883E900B81FF8 /* HTMLEntityParser.h in Headers */,
> 				977B386C122883E900B81FF8 /* HTMLEntitySearch.h in Headers */,
>-				51F174FF1F35899700C74950 /* ServiceWorkerUpdateViaCache.h in Headers */,
> 				977B386D122883E900B81FF8 /* HTMLEntityTable.h in Headers */,
> 				A81369D4097374F600D74463 /* HTMLFieldSetElement.h in Headers */,
> 				A8CFF7A60A156978000A4234 /* HTMLFontElement.h in Headers */,
>@@ -28237,6 +28239,7 @@
> 				5182C2581F3143CD0059BA7C /* JSServiceWorkerContainer.h in Headers */,
> 				5182C25A1F3143CD0059BA7C /* JSServiceWorkerGlobalScope.h in Headers */,
> 				5182C25C1F3143CD0059BA7C /* JSServiceWorkerRegistration.h in Headers */,
>+				51F175031F358B3B00C74950 /* JSServiceWorkerUpdateViaCache.h in Headers */,
> 				9BDA64D81B975CF2009C4387 /* JSShadowRoot.h in Headers */,
> 				46DFF49C1DC2620B00B80B48 /* JSShadowRootMode.h in Headers */,
> 				CD9DE17B17AAC75B00EA386D /* JSSourceBuffer.h in Headers */,
>@@ -28436,7 +28439,6 @@
> 				6E3FAD3914733F4000E42306 /* JSWebGLCompressedTextureS3TC.h in Headers */,
> 				6EE8A77310F803F3005A4A24 /* JSWebGLContextAttributes.h in Headers */,
> 				BC2CBF4E140F1ABD003879BE /* JSWebGLContextEvent.h in Headers */,
>-				51F175061F358BF700C74950 /* JSWorkerType.h in Headers */,
> 				6E3FAD3914733F4011E42307 /* JSWebGLDebugRendererInfo.h in Headers */,
> 				6E3FAD3914733F4022E42307 /* JSWebGLDebugShaders.h in Headers */,
> 				6E3FAD3914733F4000E42307 /* JSWebGLDepthTexture.h in Headers */,
>@@ -28494,6 +28496,7 @@
> 				E1C36D350EB0A094007410BC /* JSWorkerGlobalScopeBase.h in Headers */,
> 				E1C362EF0EAF2AA9007410BC /* JSWorkerLocation.h in Headers */,
> 				E1271A580EEECDE400F61213 /* JSWorkerNavigator.h in Headers */,
>+				51F175061F358BF700C74950 /* JSWorkerType.h in Headers */,
> 				7C4C96DD1AD4483500365A60 /* JSWritableStream.h in Headers */,
> 				8358CB701C53277500E0C2D8 /* JSXMLDocument.h in Headers */,
> 				BC348BD40DB7F804004ABAB9 /* JSXMLHttpRequest.h in Headers */,
>@@ -28506,6 +28509,7 @@
> 				1A762C780A074F2600989F5B /* JSXPathNSResolver.h in Headers */,
> 				1A762C7A0A074F2600989F5B /* JSXPathResult.h in Headers */,
> 				BCEFE1EB0DCA5F6400739219 /* JSXSLTProcessor.h in Headers */,
>+				83B74EF61F3E0BF200996BC7 /* KeepaliveRequestTracker.h in Headers */,
> 				85031B440A44EFC700F992E0 /* KeyboardEvent.h in Headers */,
> 				1AE00D59182DAC8D00087DD7 /* KeyedCoding.h in Headers */,
> 				517A63C51B74318F00E7DCDC /* KeyedDecoderCF.h in Headers */,
>@@ -28715,7 +28719,6 @@
> 				413E00791DB0E4F2002341D2 /* MemoryRelease.h in Headers */,
> 				93309DFA099E64920056E581 /* MergeIdenticalElementsCommand.h in Headers */,
> 				E1ADECCE0E76AD8B004A1A5E /* MessageChannel.h in Headers */,
>-				51F175031F358B3B00C74950 /* JSServiceWorkerUpdateViaCache.h in Headers */,
> 				75793E840D0CE0B3007FC0AC /* MessageEvent.h in Headers */,
> 				E1ADECBF0E76ACF1004A1A5E /* MessagePort.h in Headers */,
> 				41BF700C0FE86F49005E8DEC /* MessagePortChannel.h in Headers */,
>@@ -28737,7 +28740,6 @@
> 				07EE76EC1BE96DB000F89133 /* MockRealtimeVideoSource.h in Headers */,
> 				07EE76EF1BEA619800F89133 /* MockRealtimeVideoSourceMac.h in Headers */,
> 				CDF2B0171820540700F2B424 /* MockSourceBufferPrivate.h in Headers */,
>-				511CA6801F39331F0019E074 /* ServiceWorkerJobClient.h in Headers */,
> 				CDF2B0191820540700F2B424 /* MockTracks.h in Headers */,
> 				C6D74AD509AA282E000B0A52 /* ModifySelectionListLevel.h in Headers */,
> 				709A01FE1E3D0BDD006B0D4C /* ModuleFetchFailureKind.h in Headers */,
>@@ -29050,7 +29052,6 @@
> 				07C1C0E51BFB60ED00BD2256 /* RealtimeMediaSourceSupportedConstraints.h in Headers */,
> 				41103AAC1E39791000769F03 /* RealtimeOutgoingAudioSource.h in Headers */,
> 				BC4368E80C226E32005EFB5F /* Rect.h in Headers */,
>-				511CA6841F3A3CD90019E074 /* ServiceWorkerRegistrationParameters.h in Headers */,
> 				FD45A958175D414C00C21EC8 /* RectangleShape.h in Headers */,
> 				9831AE4A154225C900FE2644 /* ReferrerPolicy.h in Headers */,
> 				BCAB418213E356E800D8AAF3 /* Region.h in Headers */,
>@@ -29395,7 +29396,13 @@
> 				5182C23F1F313A090059BA7C /* ServiceWorker.h in Headers */,
> 				5182C2411F313A090059BA7C /* ServiceWorkerContainer.h in Headers */,
> 				5182C2431F313A090059BA7C /* ServiceWorkerGlobalScope.h in Headers */,
>+				511CA67E1F3905A60019E074 /* ServiceWorkerJob.h in Headers */,
>+				511CA6801F39331F0019E074 /* ServiceWorkerJobClient.h in Headers */,
>+				511CA67A1F3904B10019E074 /* ServiceWorkerProvider.h in Headers */,
> 				5182C2451F313A090059BA7C /* ServiceWorkerRegistration.h in Headers */,
>+				51BEB6391F3B94B0005029B9 /* ServiceWorkerRegistrationOptions.h in Headers */,
>+				511CA6841F3A3CD90019E074 /* ServiceWorkerRegistrationParameters.h in Headers */,
>+				51F174FF1F35899700C74950 /* ServiceWorkerUpdateViaCache.h in Headers */,
> 				756B2CE118B7101600FECFAA /* SessionID.h in Headers */,
> 				93309E10099E64920056E581 /* SetNodeAttributeCommand.h in Headers */,
> 				B8DBDB4C130B0F8A00F5CDB1 /* SetSelectionCommand.h in Headers */,
>@@ -29728,7 +29735,6 @@
> 				83C1D42F178D5AB500141E68 /* SVGPathSegLinetoAbs.h in Headers */,
> 				B2227A780D00BF220071B782 /* SVGPathSegLinetoHorizontal.h in Headers */,
> 				83C1D430178D5AB500141E68 /* SVGPathSegLinetoHorizontalAbs.h in Headers */,
>-				511CA67A1F3904B10019E074 /* ServiceWorkerProvider.h in Headers */,
> 				83C1D431178D5AB500141E68 /* SVGPathSegLinetoHorizontalRel.h in Headers */,
> 				83C1D432178D5AB500141E68 /* SVGPathSegLinetoRel.h in Headers */,
> 				B2227A7D0D00BF220071B782 /* SVGPathSegLinetoVertical.h in Headers */,
>@@ -30202,6 +30208,7 @@
> 				0B9056F90F2685F30095FF6A /* WorkerThreadableLoader.h in Headers */,
> 				97AABD2D14FA09D5007457AE /* WorkerThreadableWebSocketChannel.h in Headers */,
> 				A54A0C681DB807D90017A90B /* WorkerToPageFrontendChannel.h in Headers */,
>+				51F174FE1F35899200C74950 /* WorkerType.h in Headers */,
> 				93309E24099E64920056E581 /* WrapContentsInDummySpanCommand.h in Headers */,
> 				416E6FE91BBD12E5000A6053 /* WritableStreamBuiltins.h in Headers */,
> 				416E6FE81BBD12DF000A6053 /* WritableStreamInternalsBuiltins.h in Headers */,
>@@ -31445,7 +31452,6 @@
> 				51741D120B07259A00ED442C /* HistoryItem.cpp in Sources */,
> 				5160F4980B0AA75F00C1D2AF /* HistoryItemMac.mm in Sources */,
> 				4969B0F213D0B33F00DF3521 /* HitTestingTransformState.cpp in Sources */,
>-				511CA6831F3A3CD90019E074 /* ServiceWorkerRegistrationParameters.cpp in Sources */,
> 				2D8287F616E4A0380086BD00 /* HitTestLocation.cpp in Sources */,
> 				9307F1D70AF2D59000DBA31A /* HitTestResult.cpp in Sources */,
> 				FD31609812B026F700C1A359 /* HRTFDatabase.cpp in Sources */,
>@@ -32074,7 +32080,6 @@
> 				12A253E01C8FFF6600C22295 /* JSKeyframeEffect.cpp in Sources */,
> 				935F45420F7C3B5F00D7C1FB /* JSLazyEventListener.cpp in Sources */,
> 				BCE1C43B0D9830D3003B02F2 /* JSLocation.cpp in Sources */,
>-				51F175071F358BF900C74950 /* JSWorkerType.cpp in Sources */,
> 				BCE1C4400D9830F4003B02F2 /* JSLocationCustom.cpp in Sources */,
> 				93A8061F1E03B585008A1F26 /* JSLongRange.cpp in Sources */,
> 				8FAC774D119872CB0015AE94 /* JSMainThreadExecState.cpp in Sources */,
>@@ -32231,6 +32236,7 @@
> 				5182C2571F3143CD0059BA7C /* JSServiceWorkerContainer.cpp in Sources */,
> 				5182C2591F3143CD0059BA7C /* JSServiceWorkerGlobalScope.cpp in Sources */,
> 				5182C25B1F3143CD0059BA7C /* JSServiceWorkerRegistration.cpp in Sources */,
>+				51F175021F358B3B00C74950 /* JSServiceWorkerUpdateViaCache.cpp in Sources */,
> 				9BDA64D71B975CE5009C4387 /* JSShadowRoot.cpp in Sources */,
> 				46DFF49B1DC2620B00B80B48 /* JSShadowRootMode.cpp in Sources */,
> 				CD9DE17A17AAC75B00EA386D /* JSSourceBuffer.cpp in Sources */,
>@@ -32510,10 +32516,10 @@
> 				E1C8BE5D0E8BD15A0064CB7D /* JSWorker.cpp in Sources */,
> 				E182568F0EF2B02D00933242 /* JSWorkerGlobalScope.cpp in Sources */,
> 				E1C36D340EB0A094007410BC /* JSWorkerGlobalScopeBase.cpp in Sources */,
>-				511CA6791F3904B10019E074 /* ServiceWorkerProvider.cpp in Sources */,
> 				E18258AC0EF3CD7000933242 /* JSWorkerGlobalScopeCustom.cpp in Sources */,
> 				E1C362F00EAF2AA9007410BC /* JSWorkerLocation.cpp in Sources */,
> 				E1271A590EEECDE400F61213 /* JSWorkerNavigator.cpp in Sources */,
>+				51F175071F358BF900C74950 /* JSWorkerType.cpp in Sources */,
> 				7C4C96DC1AD4483500365A60 /* JSWritableStream.cpp in Sources */,
> 				8358CB6F1C53277200E0C2D8 /* JSXMLDocument.cpp in Sources */,
> 				83A4A9F91CE7FD8100709B00 /* JSXMLDocumentCustom.cpp in Sources */,
>@@ -32530,6 +32536,7 @@
> 				1A762C790A074F2600989F5B /* JSXPathResult.cpp in Sources */,
> 				A1C7FAA2133A5D3500D6732D /* JSXPathResultCustom.cpp in Sources */,
> 				BCEFE1EA0DCA5F6400739219 /* JSXSLTProcessor.cpp in Sources */,
>+				83B74EF51F3E0BF200996BC7 /* KeepaliveRequestTracker.cpp in Sources */,
> 				85031B430A44EFC700F992E0 /* KeyboardEvent.cpp in Sources */,
> 				517A63C31B74318700E7DCDC /* KeyedDecoderCF.cpp in Sources */,
> 				517A63C41B74318B00E7DCDC /* KeyedEncoderCF.cpp in Sources */,
>@@ -33056,7 +33063,6 @@
> 				A8DF4AE80980C42C0052981B /* RenderTableCol.cpp in Sources */,
> 				A8DF4AF00980C42C0052981B /* RenderTableRow.cpp in Sources */,
> 				A8DF4AED0980C42C0052981B /* RenderTableSection.cpp in Sources */,
>-				511CA67D1F3905A60019E074 /* ServiceWorkerJob.cpp in Sources */,
> 				BCEA488B097D93020094C9E4 /* RenderText.cpp in Sources */,
> 				AB67D1A8097F3AE300F9392E /* RenderTextControl.cpp in Sources */,
> 				083DAEA60F01A7FB00342754 /* RenderTextControlMultiLine.cpp in Sources */,
>@@ -33242,7 +33248,10 @@
> 				5182C23E1F313A090059BA7C /* ServiceWorker.cpp in Sources */,
> 				5182C2401F313A090059BA7C /* ServiceWorkerContainer.cpp in Sources */,
> 				5182C2421F313A090059BA7C /* ServiceWorkerGlobalScope.cpp in Sources */,
>+				511CA67D1F3905A60019E074 /* ServiceWorkerJob.cpp in Sources */,
>+				511CA6791F3904B10019E074 /* ServiceWorkerProvider.cpp in Sources */,
> 				5182C2441F313A090059BA7C /* ServiceWorkerRegistration.cpp in Sources */,
>+				511CA6831F3A3CD90019E074 /* ServiceWorkerRegistrationParameters.cpp in Sources */,
> 				511F7D441EB1C39100E47B83 /* SessionID.cpp in Sources */,
> 				93309E0F099E64920056E581 /* SetNodeAttributeCommand.cpp in Sources */,
> 				B8DBDB4B130B0F8A00F5CDB1 /* SetSelectionCommand.cpp in Sources */,
>@@ -33712,7 +33721,6 @@
> 				7AF9B20218CFB2DF00C64BEF /* VTTRegion.cpp in Sources */,
> 				7AF9B20518CFB2DF00C64BEF /* VTTRegionList.cpp in Sources */,
> 				7A93868518DCC14500B8263D /* VTTScanner.cpp in Sources */,
>-				51F175021F358B3B00C74950 /* JSServiceWorkerUpdateViaCache.cpp in Sources */,
> 				A14832B1187F61E100DA63A6 /* WAKAppKitStubs.m in Sources */,
> 				A14832B3187F629100DA63A6 /* WAKClipView.m in Sources */,
> 				A14832B5187F62FC00DA63A6 /* WAKResponder.m in Sources */,
>diff --git a/Source/WebCore/loader/DocumentThreadableLoader.cpp b/Source/WebCore/loader/DocumentThreadableLoader.cpp
>index 7ee60beafdc250638282a7c87eba4cc73acc882b..548b163fdce954033cba2b45ba00846e9f9868ad 100644
>--- a/Source/WebCore/loader/DocumentThreadableLoader.cpp
>+++ b/Source/WebCore/loader/DocumentThreadableLoader.cpp
>@@ -451,12 +451,16 @@ void DocumentThreadableLoader::loadRequest(ResourceRequest&& request, SecurityCh
> 
>         // We create an URL here as the request will be moved in requestRawResource
>         URL requestUrl = newRequest.resourceRequest().url();
>-        m_resource = m_document.cachedResourceLoader().requestRawResource(WTFMove(newRequest));
>+        ResourceError error;
>+        m_resource = m_document.cachedResourceLoader().requestRawResource(WTFMove(newRequest), &error);
>         if (m_resource)
>             m_resource->addClient(*this);
>         else {
>-            // FIXME: Since we receive a synchronous error, this is probably due to some AccessControl checks. We should try to retrieve the actual error.
>-            logErrorAndFail(ResourceError(String(), 0, requestUrl, String(), ResourceError::Type::AccessControl));
>+            if (error.isNull()) {
>+                // FIXME: Since we receive a synchronous error, this is probably due to some AccessControl checks. We should try to retrieve the actual error.
>+                logErrorAndFail(ResourceError(String(), 0, requestUrl, String(), ResourceError::Type::AccessControl));
>+            } else
>+                logErrorAndFail(error);
>         }
>         return;
>     }
>diff --git a/Source/WebCore/loader/cache/CachedResource.cpp b/Source/WebCore/loader/cache/CachedResource.cpp
>index 86ebe784e3730638244cf43fa34de784312962ee..0a15ea08d5b0b25e6580ae71239859e3f65497b8 100644
>--- a/Source/WebCore/loader/cache/CachedResource.cpp
>+++ b/Source/WebCore/loader/cache/CachedResource.cpp
>@@ -259,14 +259,23 @@ void CachedResource::load(CachedResourceLoader& cachedResourceLoader)
>         m_fragmentIdentifierForRequest = String();
>     }
> 
>-    // FIXME: We should not special-case Beacon here.
>-    if (m_options.keepAlive && type() == CachedResource::Beacon) {
>+    if (m_options.keepAlive) {
>+        if (!cachedResourceLoader.keepaliveRequestTracker().tryRegisterRequest(*this)) {
>+            setResourceError({ errorDomainWebKitInternal, 0, request.url(), ASCIILiteral("Reached maximum amount of queued data of 64Kb for keepalive requests") });
>+            failBeforeStarting();
>+            return;
>+        }
>+        // FIXME: We should not special-case Beacon here.
>+        if (type() == CachedResource::Beacon) {
>         ASSERT(m_origin);
>-        // Beacon is not exposed to workers so it is safe to rely on the document here.
>-        auto* document = cachedResourceLoader.document();
>-        auto* contentSecurityPolicy = document && !document->shouldBypassMainWorldContentSecurityPolicy() ? document->contentSecurityPolicy() : nullptr;
>-        platformStrategies()->loaderStrategy()->createPingHandle(frame.loader().networkingContext(), request, *m_origin, contentSecurityPolicy, m_options);
>-        return;
>+            // Beacon is not exposed to workers so it is safe to rely on the document here.
>+            auto* document = cachedResourceLoader.document();
>+            auto* contentSecurityPolicy = document && !document->shouldBypassMainWorldContentSecurityPolicy() ? document->contentSecurityPolicy() : nullptr;
>+            platformStrategies()->loaderStrategy()->createPingHandle(frame.loader().networkingContext(), request, *m_origin, contentSecurityPolicy, m_options);
>+            // FIXME: We currently do not get notified when ping loads finish so we treat them as finishing right away.
>+            finishLoading(nullptr);
>+            return;
>+        }
>     }
> 
>     m_loader = platformStrategies()->loaderStrategy()->loadResource(frame, *this, request, m_options);
>diff --git a/Source/WebCore/loader/cache/CachedResource.h b/Source/WebCore/loader/cache/CachedResource.h
>index 8ba98e596825b1798c8c32f352ac76e7f4d4889d..5d2c99ecb107dee44d4977962fa1ca8dc800ccf8 100644
>--- a/Source/WebCore/loader/cache/CachedResource.h
>+++ b/Source/WebCore/loader/cache/CachedResource.h
>@@ -163,7 +163,7 @@ public:
> 
>     bool isImage() const { return type() == ImageResource; }
>     // FIXME: CachedRawResource could be a main resource, an audio/video resource, or a raw XHR/icon resource.
>-    bool isMainOrMediaOrIconOrRawResource() const { return type() == MainResource || type() == MediaResource || type() == Icon || type() == RawResource; }
>+    bool isMainOrMediaOrIconOrRawResource() const { return type() == MainResource || type() == MediaResource || type() == Icon || type() == RawResource || type() == Beacon; }
>     bool ignoreForRequestCount() const
>     {
>         return m_resourceRequest.ignoreForRequestCount()
>diff --git a/Source/WebCore/loader/cache/CachedResourceLoader.cpp b/Source/WebCore/loader/cache/CachedResourceLoader.cpp
>index 830ce51cb4731f877b60474e6e329076248744e3..96a20a4267145b436e1aa3a8eec30075a334b351 100644
>--- a/Source/WebCore/loader/cache/CachedResourceLoader.cpp
>+++ b/Source/WebCore/loader/cache/CachedResourceLoader.cpp
>@@ -103,13 +103,12 @@ static CachedResource* createResource(CachedResource::Type type, CachedResourceR
> #endif
>     case CachedResource::FontResource:
>         return new CachedFont(WTFMove(request), sessionID);
>+    case CachedResource::Beacon:
>     case CachedResource::MediaResource:
>     case CachedResource::RawResource:
>     case CachedResource::Icon:
>     case CachedResource::MainResource:
>         return new CachedRawResource(WTFMove(request), type, sessionID);
>-    case CachedResource::Beacon:
>-        return new CachedResource(WTFMove(request), CachedResource::Beacon, sessionID);
> #if ENABLE(XSLT)
>     case CachedResource::XSLStyleSheet:
>         return new CachedXSLStyleSheet(WTFMove(request), sessionID);
>@@ -182,7 +181,7 @@ SessionID CachedResourceLoader::sessionID() const
>     return sessionID;
> }
> 
>-CachedResourceHandle<CachedImage> CachedResourceLoader::requestImage(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedImage> CachedResourceLoader::requestImage(CachedResourceRequest&& request, ResourceError* error)
> {
>     if (Frame* frame = this->frame()) {
>         if (frame->loader().pageDismissalEventBeingDispatched() != FrameLoader::PageDismissalType::None) {
>@@ -196,33 +195,33 @@ CachedResourceHandle<CachedImage> CachedResourceLoader::requestImage(CachedResou
>     }
> 
>     auto defer = clientDefersImage(request.resourceRequest().url()) ? DeferOption::DeferredByClient : DeferOption::NoDefer;
>-    return downcast<CachedImage>(requestResource(CachedResource::ImageResource, WTFMove(request), ForPreload::No, defer).get());
>+    return downcast<CachedImage>(requestResource(CachedResource::ImageResource, WTFMove(request), error, ForPreload::No, defer).get());
> }
> 
>-CachedResourceHandle<CachedFont> CachedResourceLoader::requestFont(CachedResourceRequest&& request, bool isSVG)
>+CachedResourceHandle<CachedFont> CachedResourceLoader::requestFont(CachedResourceRequest&& request, bool isSVG, ResourceError* error)
> {
> #if ENABLE(SVG_FONTS)
>     if (isSVG)
>-        return downcast<CachedSVGFont>(requestResource(CachedResource::SVGFontResource, WTFMove(request)).get());
>+        return downcast<CachedSVGFont>(requestResource(CachedResource::SVGFontResource, WTFMove(request), error).get());
> #else
>     UNUSED_PARAM(isSVG);
> #endif
>-    return downcast<CachedFont>(requestResource(CachedResource::FontResource, WTFMove(request)).get());
>+    return downcast<CachedFont>(requestResource(CachedResource::FontResource, WTFMove(request), error).get());
> }
> 
> #if ENABLE(VIDEO_TRACK)
>-CachedResourceHandle<CachedTextTrack> CachedResourceLoader::requestTextTrack(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedTextTrack> CachedResourceLoader::requestTextTrack(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedTextTrack>(requestResource(CachedResource::TextTrackResource, WTFMove(request)).get());
>+    return downcast<CachedTextTrack>(requestResource(CachedResource::TextTrackResource, WTFMove(request), error).get());
> }
> #endif
> 
>-CachedResourceHandle<CachedCSSStyleSheet> CachedResourceLoader::requestCSSStyleSheet(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedCSSStyleSheet> CachedResourceLoader::requestCSSStyleSheet(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedCSSStyleSheet>(requestResource(CachedResource::CSSStyleSheet, WTFMove(request)).get());
>+    return downcast<CachedCSSStyleSheet>(requestResource(CachedResource::CSSStyleSheet, WTFMove(request), error).get());
> }
> 
>-CachedResourceHandle<CachedCSSStyleSheet> CachedResourceLoader::requestUserCSSStyleSheet(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedCSSStyleSheet> CachedResourceLoader::requestUserCSSStyleSheet(CachedResourceRequest&& request, ResourceError*)
> {
>     ASSERT(document());
>     request.setDomainForCachePartition(*document());
>@@ -248,55 +247,55 @@ CachedResourceHandle<CachedCSSStyleSheet> CachedResourceLoader::requestUserCSSSt
>     return userSheet;
> }
> 
>-CachedResourceHandle<CachedScript> CachedResourceLoader::requestScript(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedScript> CachedResourceLoader::requestScript(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedScript>(requestResource(CachedResource::Script, WTFMove(request)).get());
>+    return downcast<CachedScript>(requestResource(CachedResource::Script, WTFMove(request), error).get());
> }
> 
> #if ENABLE(XSLT)
>-CachedResourceHandle<CachedXSLStyleSheet> CachedResourceLoader::requestXSLStyleSheet(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedXSLStyleSheet> CachedResourceLoader::requestXSLStyleSheet(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedXSLStyleSheet>(requestResource(CachedResource::XSLStyleSheet, WTFMove(request)).get());
>+    return downcast<CachedXSLStyleSheet>(requestResource(CachedResource::XSLStyleSheet, WTFMove(request), error).get());
> }
> #endif
> 
>-CachedResourceHandle<CachedSVGDocument> CachedResourceLoader::requestSVGDocument(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedSVGDocument> CachedResourceLoader::requestSVGDocument(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedSVGDocument>(requestResource(CachedResource::SVGDocumentResource, WTFMove(request)).get());
>+    return downcast<CachedSVGDocument>(requestResource(CachedResource::SVGDocumentResource, WTFMove(request), error).get());
> }
> 
> #if ENABLE(LINK_PREFETCH)
>-CachedResourceHandle<CachedResource> CachedResourceLoader::requestLinkResource(CachedResource::Type type, CachedResourceRequest&& request)
>+CachedResourceHandle<CachedResource> CachedResourceLoader::requestLinkResource(CachedResource::Type type, CachedResourceRequest&& request, ResourceError* error)
> {
>     ASSERT(frame());
>     ASSERT(type == CachedResource::LinkPrefetch || type == CachedResource::LinkSubresource);
>-    return requestResource(type, WTFMove(request));
>+    return requestResource(type, WTFMove(request), error);
> }
> #endif
> 
>-CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestMedia(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestMedia(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedRawResource>(requestResource(CachedResource::MediaResource, WTFMove(request)).get());
>+    return downcast<CachedRawResource>(requestResource(CachedResource::MediaResource, WTFMove(request), error).get());
> }
> 
>-CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestIcon(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestIcon(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedRawResource>(requestResource(CachedResource::Icon, WTFMove(request)).get());
>+    return downcast<CachedRawResource>(requestResource(CachedResource::Icon, WTFMove(request), error).get());
> }
> 
>-CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestRawResource(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestRawResource(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedRawResource>(requestResource(CachedResource::RawResource, WTFMove(request)).get());
>+    return downcast<CachedRawResource>(requestResource(CachedResource::RawResource, WTFMove(request), error).get());
> }
> 
>-CachedResourceHandle<CachedResource> CachedResourceLoader::requestBeaconResource(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedResource> CachedResourceLoader::requestBeaconResource(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return requestResource(CachedResource::Beacon, WTFMove(request)).get();
>+    return requestResource(CachedResource::Beacon, WTFMove(request), error).get();
> }
> 
>-CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestMainResource(CachedResourceRequest&& request)
>+CachedResourceHandle<CachedRawResource> CachedResourceLoader::requestMainResource(CachedResourceRequest&& request, ResourceError* error)
> {
>-    return downcast<CachedRawResource>(requestResource(CachedResource::MainResource, WTFMove(request)).get());
>+    return downcast<CachedRawResource>(requestResource(CachedResource::MainResource, WTFMove(request), error).get());
> }
> 
> static MixedContentChecker::ContentType contentTypeFromResourceType(CachedResource::Type type)
>@@ -689,7 +688,7 @@ void CachedResourceLoader::updateHTTPRequestHeaders(CachedResource::Type type, C
>     request.updateAccordingCacheMode();
> }
> 
>-CachedResourceHandle<CachedResource> CachedResourceLoader::requestResource(CachedResource::Type type, CachedResourceRequest&& request, ForPreload forPreload, DeferOption defer)
>+CachedResourceHandle<CachedResource> CachedResourceLoader::requestResource(CachedResource::Type type, CachedResourceRequest&& request, ResourceError* error, ForPreload forPreload, DeferOption defer)
> {
>     if (Document* document = this->document())
>         request.upgradeInsecureRequestIfNeeded(*document);
>@@ -700,6 +699,8 @@ CachedResourceHandle<CachedResource> CachedResourceLoader::requestResource(Cache
> 
>     if (!url.isValid()) {
>         RELEASE_LOG_IF_ALLOWED("requestResource: URL is invalid (frame = %p)", frame());
>+        if (error)
>+            *error = { errorDomainWebKitInternal, 0, url, ASCIILiteral("URL is invalid") };
>         return nullptr;
>     }
> 
>@@ -708,6 +709,8 @@ CachedResourceHandle<CachedResource> CachedResourceLoader::requestResource(Cache
>     // We are passing url as well as request, as request url may contain a fragment identifier.
>     if (!canRequest(type, url, request, forPreload)) {
>         RELEASE_LOG_IF_ALLOWED("requestResource: Not allowed to request resource (frame = %p)", frame());
>+        if (error)
>+            *error = { errorDomainWebKitInternal, 0, url, ASCIILiteral("Not allowed to request resource"), ResourceError::Type::AccessControl };
>         return nullptr;
>     }
> 
>@@ -725,6 +728,8 @@ CachedResourceHandle<CachedResource> CachedResourceLoader::requestResource(Cache
>                 resource->setResourceError(ResourceError(ContentExtensions::WebKitContentBlockerDomain, 0, resourceRequest.url(), WEB_UI_STRING("The URL was blocked by a content blocker", "WebKitErrorBlockedByContentBlocker description")));
>                 return resource;
>             }
>+            if (error)
>+                *error = { errorDomainWebKitInternal, 0, url, ASCIILiteral("Resource blocked by content blocker"), ResourceError::Type::AccessControl };
>             return nullptr;
>         }
>         if (blockedStatus.madeHTTPS
>@@ -829,6 +834,8 @@ CachedResourceHandle<CachedResource> CachedResourceLoader::requestResource(Cache
>         if (resource->errorOccurred()) {
>             if (resource->allowsCaching() && resource->inCache())
>                 memoryCache.remove(*resource);
>+            if (error)
>+                *error = resource->resourceError();
>             return nullptr;
>         }
>     }
>@@ -1245,7 +1252,7 @@ CachedResourceHandle<CachedResource> CachedResourceLoader::preload(CachedResourc
>     if (request.charset().isEmpty() && (type == CachedResource::Script || type == CachedResource::CSSStyleSheet))
>         request.setCharset(m_document->charset());
> 
>-    CachedResourceHandle<CachedResource> resource = requestResource(type, WTFMove(request), ForPreload::Yes);
>+    CachedResourceHandle<CachedResource> resource = requestResource(type, WTFMove(request), nullptr, ForPreload::Yes);
>     if (resource && (!m_preloads || !m_preloads->contains(resource.get()))) {
>         // Fonts need special treatment since just creating the resource doesn't trigger a load.
>         if (type == CachedResource::FontResource)
>diff --git a/Source/WebCore/loader/cache/CachedResourceLoader.h b/Source/WebCore/loader/cache/CachedResourceLoader.h
>index 71a5b88b7e0037a545e50ccce94e8cde7af7342f..38a9c0981b1a42edaed17bb899ff934a4ed52758 100644
>--- a/Source/WebCore/loader/cache/CachedResourceLoader.h
>+++ b/Source/WebCore/loader/cache/CachedResourceLoader.h
>@@ -30,6 +30,7 @@
> #include "CachedResourceHandle.h"
> #include "CachedResourceRequest.h"
> #include "ContentSecurityPolicy.h"
>+#include "KeepaliveRequestTracker.h"
> #include "ResourceTimingInformation.h"
> #include "Timer.h"
> #include <wtf/HashMap.h>
>@@ -71,25 +72,25 @@ public:
>     static Ref<CachedResourceLoader> create(DocumentLoader* documentLoader) { return adoptRef(*new CachedResourceLoader(documentLoader)); }
>     ~CachedResourceLoader();
> 
>-    CachedResourceHandle<CachedImage> requestImage(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedCSSStyleSheet> requestCSSStyleSheet(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedCSSStyleSheet> requestUserCSSStyleSheet(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedScript> requestScript(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedFont> requestFont(CachedResourceRequest&&, bool isSVG);
>-    CachedResourceHandle<CachedRawResource> requestMedia(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedRawResource> requestIcon(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedResource> requestBeaconResource(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedRawResource> requestRawResource(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedRawResource> requestMainResource(CachedResourceRequest&&);
>-    CachedResourceHandle<CachedSVGDocument> requestSVGDocument(CachedResourceRequest&&);
>+    CachedResourceHandle<CachedImage> requestImage(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedCSSStyleSheet> requestCSSStyleSheet(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedCSSStyleSheet> requestUserCSSStyleSheet(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedScript> requestScript(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedFont> requestFont(CachedResourceRequest&&, bool isSVG, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedRawResource> requestMedia(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedRawResource> requestIcon(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedResource> requestBeaconResource(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedRawResource> requestRawResource(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedRawResource> requestMainResource(CachedResourceRequest&&, ResourceError* = nullptr);
>+    CachedResourceHandle<CachedSVGDocument> requestSVGDocument(CachedResourceRequest&&, ResourceError* = nullptr);
> #if ENABLE(XSLT)
>-    CachedResourceHandle<CachedXSLStyleSheet> requestXSLStyleSheet(CachedResourceRequest&&);
>+    CachedResourceHandle<CachedXSLStyleSheet> requestXSLStyleSheet(CachedResourceRequest&&, ResourceError* = nullptr);
> #endif
> #if ENABLE(LINK_PREFETCH)
>-    CachedResourceHandle<CachedResource> requestLinkResource(CachedResource::Type, CachedResourceRequest&&);
>+    CachedResourceHandle<CachedResource> requestLinkResource(CachedResource::Type, CachedResourceRequest&&, ResourceError* = nullptr);
> #endif
> #if ENABLE(VIDEO_TRACK)
>-    CachedResourceHandle<CachedTextTrack> requestTextTrack(CachedResourceRequest&&);
>+    CachedResourceHandle<CachedTextTrack> requestTextTrack(CachedResourceRequest&&, ResourceError* = nullptr);
> #endif
> 
>     // Logs an access denied message to the console for the specified URL.
>@@ -146,13 +147,15 @@ public:
> 
>     bool isAlwaysOnLoggingAllowed() const;
> 
>+    KeepaliveRequestTracker& keepaliveRequestTracker() { return m_keepaliveRequestTracker; }
>+
> private:
>     explicit CachedResourceLoader(DocumentLoader*);
> 
>     enum class ForPreload { Yes, No };
>     enum class DeferOption { NoDefer, DeferredByClient };
> 
>-    CachedResourceHandle<CachedResource> requestResource(CachedResource::Type, CachedResourceRequest&&, ForPreload = ForPreload::No, DeferOption = DeferOption::NoDefer);
>+    CachedResourceHandle<CachedResource> requestResource(CachedResource::Type, CachedResourceRequest&&, ResourceError* = nullptr, ForPreload = ForPreload::No, DeferOption = DeferOption::NoDefer);
>     CachedResourceHandle<CachedResource> revalidateResource(CachedResourceRequest&&, CachedResource&);
>     CachedResourceHandle<CachedResource> loadResource(CachedResource::Type, CachedResourceRequest&&);
> 
>@@ -193,6 +196,7 @@ private:
>     Timer m_garbageCollectDocumentResourcesTimer;
> 
>     ResourceTimingInformation m_resourceTimingInfo;
>+    KeepaliveRequestTracker m_keepaliveRequestTracker;
> 
>     // 29 bits left
>     bool m_autoLoadImages : 1;
>diff --git a/Source/WebCore/loader/cache/KeepaliveRequestTracker.cpp b/Source/WebCore/loader/cache/KeepaliveRequestTracker.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..55beb7ec39e73df83f366926dcfb8843a8eedbbb
>--- /dev/null
>+++ b/Source/WebCore/loader/cache/KeepaliveRequestTracker.cpp
>@@ -0,0 +1,91 @@
>+/*
>+ * Copyright (C) 2017 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "KeepaliveRequestTracker.h"
>+
>+namespace WebCore {
>+
>+const uint64_t maxInflightKeepaliveBytes { 65536 }; // 64 kibibytes as per Fetch specification.
>+
>+KeepaliveRequestTracker::~KeepaliveRequestTracker()
>+{
>+    auto inflightRequests = WTFMove(m_inflightKeepaliveRequests);
>+    for (auto& resource : inflightRequests)
>+        resource->removeClient(*this);
>+}
>+
>+bool KeepaliveRequestTracker::tryRegisterRequest(CachedResource& resource)
>+{
>+    ASSERT(resource.options().keepAlive);
>+    auto* body = resource.resourceRequest().httpBody();
>+    if (!body)
>+        return true;
>+
>+    uint64_t bodySize = body->lengthInBytes();
>+    if (m_inflightKeepaliveBytes + bodySize > maxInflightKeepaliveBytes)
>+        return false;
>+
>+    registerRequest(resource);
>+    return true;
>+}
>+
>+void KeepaliveRequestTracker::registerRequest(CachedResource& resource)
>+{
>+    ASSERT(resource.options().keepAlive);
>+    auto* body = resource.resourceRequest().httpBody();
>+    if (!body)
>+        return;
>+    ASSERT(!m_inflightKeepaliveRequests.contains(&resource));
>+    m_inflightKeepaliveRequests.append(&resource);
>+    m_inflightKeepaliveBytes += body->lengthInBytes();
>+    ASSERT(m_inflightKeepaliveBytes <= maxInflightKeepaliveBytes);
>+
>+    resource.addClient(*this);
>+}
>+
>+void KeepaliveRequestTracker::responseReceived(CachedResource& resource, const ResourceResponse&)
>+{
>+    // Per Fetch specification, allocated quota should be returned before the promise is resolved,
>+    // which is when the response is received.
>+    unregisterRequest(resource);
>+}
>+
>+void KeepaliveRequestTracker::notifyFinished(CachedResource& resource)
>+{
>+    unregisterRequest(resource);
>+}
>+
>+void KeepaliveRequestTracker::unregisterRequest(CachedResource& resource)
>+{
>+    ASSERT(resource.options().keepAlive);
>+    resource.removeClient(*this);
>+    bool wasRemoved = m_inflightKeepaliveRequests.removeFirst(&resource);
>+    ASSERT_UNUSED(wasRemoved, wasRemoved);
>+    m_inflightKeepaliveBytes -= resource.resourceRequest().httpBody()->lengthInBytes();
>+    ASSERT(m_inflightKeepaliveBytes <= maxInflightKeepaliveBytes);
>+}
>+
>+}
>diff --git a/Source/WebCore/loader/cache/KeepaliveRequestTracker.h b/Source/WebCore/loader/cache/KeepaliveRequestTracker.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..47da4ede7cc8959120bd7b2073ed9432216b1926
>--- /dev/null
>+++ b/Source/WebCore/loader/cache/KeepaliveRequestTracker.h
>@@ -0,0 +1,52 @@
>+/*
>+ * Copyright (C) 2017 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#include "CachedRawResourceClient.h"
>+#include "CachedResource.h"
>+#include "CachedResourceHandle.h"
>+#include <wtf/Forward.h>
>+
>+namespace WebCore {
>+
>+class KeepaliveRequestTracker final : public CachedRawResourceClient {
>+public:
>+    ~KeepaliveRequestTracker();
>+    bool tryRegisterRequest(CachedResource&);
>+
>+    // CachedRawResourceClient.
>+    void responseReceived(CachedResource&, const ResourceResponse&) final;
>+    void notifyFinished(CachedResource&) final;
>+
>+private:
>+    void registerRequest(CachedResource&);
>+    void unregisterRequest(CachedResource&);
>+
>+    Vector<CachedResourceHandle<CachedResource>> m_inflightKeepaliveRequests;
>+    uint64_t m_inflightKeepaliveBytes { 0 };
>+};
>+
>+}
>diff --git a/Source/WebCore/platform/network/FormData.cpp b/Source/WebCore/platform/network/FormData.cpp
>index 564a05379f59a914791985a8524b21094abab2b4..4d1801f9001fe6d85ea3dc4baa91ed7b371e3ad4 100644
>--- a/Source/WebCore/platform/network/FormData.cpp
>+++ b/Source/WebCore/platform/network/FormData.cpp
>@@ -33,6 +33,7 @@
> #include "FormDataList.h"
> #include "Page.h"
> #include "TextEncoding.h"
>+#include "ThreadableBlobRegistry.h"
> 
> namespace WebCore {
> 
>@@ -124,6 +125,26 @@ Ref<FormData> FormData::isolatedCopy() const
>     return formData;
> }
> 
>+uint64_t FormDataElement::lengthInBytes() const
>+{
>+    switch (m_type) {
>+    case Type::Data:
>+        return m_data.size();
>+    case Type::EncodedFile: {
>+        if (m_fileLength != BlobDataItem::toEndOfFile)
>+            return m_fileLength;
>+        long long fileSize;
>+        if (getFileSize(m_shouldGenerateFile ? m_generatedFilename : m_filename, fileSize))
>+            return fileSize;
>+        return 0;
>+    }
>+    case Type::EncodedBlob:
>+        return blobRegistry().blobSize(m_url);
>+    }
>+    ASSERT_NOT_REACHED();
>+    return 0;
>+}
>+
> FormDataElement FormDataElement::isolatedCopy() const
> {
>     switch (m_type) {
>@@ -146,16 +167,19 @@ void FormData::appendData(const void* data, size_t size)
> void FormData::appendFile(const String& filename, bool shouldGenerateFile)
> {
>     m_elements.append(FormDataElement(filename, 0, BlobDataItem::toEndOfFile, invalidFileTime(), shouldGenerateFile));
>+    m_lengthInBytes = std::nullopt;
> }
> 
> void FormData::appendFileRange(const String& filename, long long start, long long length, double expectedModificationTime, bool shouldGenerateFile)
> {
>     m_elements.append(FormDataElement(filename, start, length, expectedModificationTime, shouldGenerateFile));
>+    m_lengthInBytes = std::nullopt;
> }
> 
> void FormData::appendBlob(const URL& blobURL)
> {
>     m_elements.append(FormDataElement(blobURL));
>+    m_lengthInBytes = std::nullopt;
> }
> 
> void FormData::appendKeyValuePairItems(const FormDataList& list, const TextEncoding& encoding, bool isMultiPartForm, Document* document, EncodingType encodingType)
>@@ -244,6 +268,7 @@ void FormData::appendKeyValuePairItems(const FormDataList& list, const TextEncod
> 
> char* FormData::expandDataStore(size_t size)
> {
>+    m_lengthInBytes = std::nullopt;
>     if (m_elements.isEmpty() || m_elements.last().m_type != FormDataElement::Type::Data)
>         m_elements.append(FormDataElement());
>     FormDataElement& e = m_elements.last();
>@@ -386,4 +411,15 @@ void FormData::removeGeneratedFilesIfNeeded()
>     }
> }
> 
>+uint64_t FormData::lengthInBytes() const
>+{
>+    if (!m_lengthInBytes) {
>+        uint64_t length = 0;
>+        for (auto& element : m_elements)
>+            length += element.lengthInBytes();
>+        m_lengthInBytes = length;
>+    }
>+    return *m_lengthInBytes;
>+}
>+
> } // namespace WebCore
>diff --git a/Source/WebCore/platform/network/FormData.h b/Source/WebCore/platform/network/FormData.h
>index 7e44dcaf959f8194675618073920565e4dc52324..6a7f35109cd46984d114198343aa28ad56ade456 100644
>--- a/Source/WebCore/platform/network/FormData.h
>+++ b/Source/WebCore/platform/network/FormData.h
>@@ -69,6 +69,8 @@ public:
>     {
>     }
> 
>+    uint64_t lengthInBytes() const;
>+
>     FormDataElement isolatedCopy() const;
> 
>     template<typename Encoder>
>@@ -254,12 +256,13 @@ public:
>         return FormURLEncoded;
>     }
> 
>+    uint64_t lengthInBytes() const;
>+
> private:
>     FormData();
>     FormData(const FormData&);
> 
>     void appendKeyValuePairItems(const FormDataList&, const TextEncoding&, bool isMultiPartForm, Document*, EncodingType = FormURLEncoded);
>-
>     bool hasGeneratedFiles() const;
>     bool hasOwnedGeneratedFiles() const;
> 
>@@ -269,6 +272,7 @@ private:
>     bool m_alwaysStream { false };
>     Vector<char> m_boundary;
>     bool m_containsPasswordData { false };
>+    mutable std::optional<uint64_t> m_lengthInBytes;
> };
> 
> inline bool operator==(const FormData& a, const FormData& b)
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index 1c1e3e6d706e2d5796c68ef1ed08365773e97bcb..7089cd03c2a384cda5fe6eecc58b493dd71c49fb 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,23 @@
>+2017-08-11  Chris Dumez  <cdumez@apple.com>
>+
>+        Implement quota limitation for keepalive Fetch requests
>+        https://bugs.webkit.org/show_bug.cgi?id=175482
>+
>+        Reviewed by Sam Weinig and Youenn Fablet.
>+
>+        * fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt:
>+        * http/tests/contentextensions/async-xhr-onerror-expected.txt:
>+        * http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-iframe-expected.txt:
>+        * http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-main-frame-expected.txt:
>+        * http/tests/security/mixedContent/insecure-xhr-in-main-frame-expected.txt:
>+        Rebaseline a few tests now that we provide a more helpful error message when an XHR is failing synchronously.
>+
>+        * http/wpt/beacon/beacon-quota-expected.txt: Added.
>+        * http/wpt/beacon/beacon-quota.html: Added.
>+        Add layout test coverage for keepalive Fetch requests quota in the context of sendBeacon().
>+        The second part of the test is still failing because WebCore does not currently know when
>+        ping loads (e.g. beacon loads) complete. This will be addressed via Bug 175443.
>+
> 2017-08-10  Chris Dumez  <cdumez@apple.com>
> 
>         [Beacon] Do connect-src CSP check on redirects as well
>diff --git a/LayoutTests/imported/w3c/ChangeLog b/LayoutTests/imported/w3c/ChangeLog
>index a8be26cd6aaccf572153f83661ff419f3a92942a..4bf5b6be3495cfd3b2832a9ea0e1052d6ea811e8 100644
>--- a/LayoutTests/imported/w3c/ChangeLog
>+++ b/LayoutTests/imported/w3c/ChangeLog
>@@ -1,3 +1,23 @@
>+2017-08-11  Chris Dumez  <cdumez@apple.com>
>+
>+        Implement quota limitation for keepalive Fetch requests
>+        https://bugs.webkit.org/show_bug.cgi?id=175482
>+
>+        Reviewed by Sam Weinig and Youenn Fablet.
>+
>+        * web-platform-tests/fetch/api/basic/scheme-about.any-expected.txt:
>+        * web-platform-tests/fetch/api/basic/scheme-about.any.worker-expected.txt:
>+        * web-platform-tests/fetch/api/cors/cors-multiple-origins-expected.txt:
>+        * web-platform-tests/fetch/api/cors/cors-multiple-origins-worker-expected.txt:
>+        * web-platform-tests/fetch/api/cors/cors-preflight-star.any-expected.txt:
>+        * web-platform-tests/fetch/api/cors/cors-preflight-star.any.worker-expected.txt:
>+        * web-platform-tests/fetch/http-cache/cc-request-expected.txt:
>+        Rebaseline tests now that we provide a more helpful error message when rejecting
>+        the fetch() promise.
>+
>+        * web-platform-tests/fetch/api/request/request-keepalive-quota-expected.txt:
>+        Rebaseline test for keepalive Fetch requests quota which is now passing.
>+
> 2017-08-09  Chris Dumez  <cdumez@apple.com>
> 
>         Import beacon/headers/header-content-type.html from upstream WPT
>diff --git a/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt b/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt
>index f9eee904ae59579f77c8668059aae95edfacb2e2..ec7ecfb69a71f043b00b905024c91fb5f7b447fc 100644
>--- a/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt
>+++ b/LayoutTests/fast/xmlhttprequest/xmlhttprequest-nonexistent-file-expected.txt
>@@ -1,5 +1,5 @@
> CONSOLE MESSAGE: line 64: Not allowed to load local resource: nonexistent.html
>-CONSOLE MESSAGE: line 64: XMLHttpRequest cannot load nonexistent.html due to access control checks.
>+CONSOLE MESSAGE: line 64: XMLHttpRequest cannot load nonexistent.html. Not allowed to request resource
> 
> Bug 22475: REGRESSION: Async XMLHttpRequest never finishes on nonexistent files anymore
> 
>diff --git a/LayoutTests/http/tests/contentextensions/async-xhr-onerror-expected.txt b/LayoutTests/http/tests/contentextensions/async-xhr-onerror-expected.txt
>index 3f2aa09775ec5168cadb1f356a82a54a9a3c58e3..d40b123a2532153ebaf823851831b0cc1c17a9c1 100644
>--- a/LayoutTests/http/tests/contentextensions/async-xhr-onerror-expected.txt
>+++ b/LayoutTests/http/tests/contentextensions/async-xhr-onerror-expected.txt
>@@ -1,7 +1,7 @@
> CONSOLE MESSAGE: line 30: Content blocker prevented frame displaying http://127.0.0.1:8000/contentextensions/async-xhr-onerror.html from loading a resource from http://127.0.0.1:8000/contentextensions/resources/url-blocking-test.js
>-CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/contentextensions/resources/url-blocking-test.js due to access control checks.
>+CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/contentextensions/resources/url-blocking-test.js. Resource blocked by content blocker
> CONSOLE MESSAGE: line 30: Content blocker prevented frame displaying http://127.0.0.1:8000/contentextensions/async-xhr-onerror.html from loading a resource from http://127.0.0.1:8000/contentextensions/resources/url-blocking-test.js
>-CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/contentextensions/resources/url-blocking-test.js due to access control checks.
>+CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/contentextensions/resources/url-blocking-test.js. Resource blocked by content blocker
> Asynchronous onreadystatechange status: 0, readyState:1, responseText: 
> Finished runTest. Waiting for callbacks
> Asynchronous onreadystatechange status: 0, readyState:1, responseText: 
>diff --git a/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-iframe-expected.txt b/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-iframe-expected.txt
>index 5d3fbb75cac45548d8cebc665cda23b5faf4a3bb..89516e33917c59e16886e6aa64da91a8c14e4cde 100644
>--- a/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-iframe-expected.txt
>+++ b/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-iframe-expected.txt
>@@ -2,7 +2,7 @@ frame "-->" - didStartProvisionalLoadForFrame
> main frame - didFinishDocumentLoadForFrame
> frame "-->" - didCommitLoadForFrame
> CONSOLE MESSAGE: Blocked mixed content http://127.0.0.1:8000/xmlhttprequest/resources/access-control-basic-allow-star.cgi because 'block-all-mixed-content' appears in the Content Security Policy.
>-CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-basic-allow-star.cgi due to access control checks.
>+CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-basic-allow-star.cgi. Not allowed to request resource
> frame "-->" - didFinishDocumentLoadForFrame
> frame "-->" - didHandleOnloadEventsForFrame
> main frame - didHandleOnloadEventsForFrame
>diff --git a/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-main-frame-expected.txt b/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-main-frame-expected.txt
>index c8e65e2dae98932c668e9799ddc935dd098d5de7..3f6476f0b9c224f81ca55ac1698df0a002bf0f43 100644
>--- a/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-main-frame-expected.txt
>+++ b/LayoutTests/http/tests/security/contentSecurityPolicy/block-all-mixed-content/insecure-xhr-asynchronous-in-main-frame-expected.txt
>@@ -4,7 +4,7 @@ main frame - didHandleOnloadEventsForFrame
> main frame - didFinishLoadForFrame
> main frame - didCommitLoadForFrame
> CONSOLE MESSAGE: Blocked mixed content http://127.0.0.1:8000/xmlhttprequest/resources/access-control-basic-allow-star.cgi because 'block-all-mixed-content' appears in the Content Security Policy.
>-CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-basic-allow-star.cgi due to access control checks.
>+CONSOLE MESSAGE: line 30: XMLHttpRequest cannot load http://127.0.0.1:8000/xmlhttprequest/resources/access-control-basic-allow-star.cgi. Not allowed to request resource
> main frame - didFinishDocumentLoadForFrame
> main frame - didHandleOnloadEventsForFrame
> main frame - didFinishLoadForFrame
>diff --git a/LayoutTests/http/tests/security/mixedContent/insecure-xhr-in-main-frame-expected.txt b/LayoutTests/http/tests/security/mixedContent/insecure-xhr-in-main-frame-expected.txt
>index 7fcfdd1dd1595d4dd62bc144499d7d3002c94cbe..c42e555e343f8c1bc60d13edbb383f4ce6ba86fa 100644
>--- a/LayoutTests/http/tests/security/mixedContent/insecure-xhr-in-main-frame-expected.txt
>+++ b/LayoutTests/http/tests/security/mixedContent/insecure-xhr-in-main-frame-expected.txt
>@@ -1,4 +1,4 @@
> CONSOLE MESSAGE: line 28: [blocked] The page at https://127.0.0.1:8443/security/mixedContent/resources/insecure-xhr-in-main-frame-window.html was not allowed to display insecure content from http://127.0.0.1:8000/.
> 
>-CONSOLE MESSAGE: line 28: XMLHttpRequest cannot load http://127.0.0.1:8000/ due to access control checks.
>+CONSOLE MESSAGE: line 28: XMLHttpRequest cannot load http://127.0.0.1:8000/. Not allowed to request resource
> This test opens a HTTPS window that loads insecure data via XHR. We should trigger a mixed content callback because the main frame in the window is HTTPS but now has insecure data.
>diff --git a/LayoutTests/http/wpt/beacon/beacon-quota-expected.txt b/LayoutTests/http/wpt/beacon/beacon-quota-expected.txt
>new file mode 100644
>index 0000000000000000000000000000000000000000..b78c982473bae413de21cc8eb4509a4402f74327
>--- /dev/null
>+++ b/LayoutTests/http/wpt/beacon/beacon-quota-expected.txt
>@@ -0,0 +1,5 @@
>+CONSOLE MESSAGE: line 14: Reached maximum amount of queued data of 64Kb for keepalive requests
>+
>+PASS Beacon with a body above the Quota Limit should fail. 
>+FAIL Multiple Beacons Quota Limit assert_false: Second beacon should not be sent because we reached the quota expected false got true
>+
>diff --git a/LayoutTests/http/wpt/beacon/beacon-quota.html b/LayoutTests/http/wpt/beacon/beacon-quota.html
>new file mode 100644
>index 0000000000000000000000000000000000000000..18e58f83549832d238366fe37123e4335cc62a55
>--- /dev/null
>+++ b/LayoutTests/http/wpt/beacon/beacon-quota.html
>@@ -0,0 +1,21 @@
>+<!DOCTYPE html>
>+<script src="/resources/testharness.js"></script>
>+<script src="/resources/testharnessreport.js"></script>
>+<script>
>+    // We should expect 64KiB of rolling quota for any type of keep-alive request sent.
>+    var expectedQuota = 65536;
>+
>+    function createPayload(payloadSize)
>+    {
>+        return new Blob(["*".repeat(payloadSize)]);
>+    }
>+
>+    test(function() {
>+        assert_false(navigator.sendBeacon("/", createPayload(expectedQuota + 1)));
>+    }, "Beacon with a body above the Quota Limit should fail.");
>+
>+    test(function() {
>+        assert_true(navigator.sendBeacon("/", createPayload(expectedQuota)), "Beacon with a body at the Quota Limit should succeed.");
>+        assert_false(navigator.sendBeacon("/", createPayload(1)), "Second beacon should not be sent because we reached the quota");
>+    }, "Multiple Beacons Quota Limit");
>+</script>
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any-expected.txt
>index b608de7367052604421a4f7c08c525679f61429f..c12cfa71ad3c69d757bd102ab2422732cfbde2fa 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any-expected.txt
>@@ -5,9 +5,9 @@ CONSOLE MESSAGE: line 27: Fetch API cannot load about:invalid.com. Cross origin
> CONSOLE MESSAGE: line 27: Fetch API cannot load about:config. Cross origin requests are only supported for HTTP.
> CONSOLE MESSAGE: line 27: Fetch API cannot load about:unicorn. Cross origin requests are only supported for HTTP.
> 
>-FAIL Fetching about:blank (GET) is OK promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL Fetching about:blank (PUT) is OK promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL Fetching about:blank (POST) is OK promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Fetching about:blank (GET) is OK promise_test: Unhandled rejection with value: object "TypeError: Cross origin requests are only supported for HTTP."
>+FAIL Fetching about:blank (PUT) is OK promise_test: Unhandled rejection with value: object "TypeError: Preflight response is not successful"
>+FAIL Fetching about:blank (POST) is OK promise_test: Unhandled rejection with value: object "TypeError: Cross origin requests are only supported for HTTP."
> PASS Fetching about:invalid.com is KO 
> PASS Fetching about:config is KO 
> PASS Fetching about:unicorn is KO 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any.worker-expected.txt
>index 93992602d358f8cf658e1bd144f35cfc5c69ed92..6304a83beba553674372bf2ae8b414b14eab9849 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/basic/scheme-about.any.worker-expected.txt
>@@ -1,7 +1,7 @@
> 
>-FAIL Fetching about:blank (GET) is OK promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL Fetching about:blank (PUT) is OK promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL Fetching about:blank (POST) is OK promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Fetching about:blank (GET) is OK promise_test: Unhandled rejection with value: object "TypeError: Cross origin requests are only supported for HTTP."
>+FAIL Fetching about:blank (PUT) is OK promise_test: Unhandled rejection with value: object "TypeError: Preflight response is not successful"
>+FAIL Fetching about:blank (POST) is OK promise_test: Unhandled rejection with value: object "TypeError: Cross origin requests are only supported for HTTP."
> PASS Fetching about:invalid.com is KO 
> PASS Fetching about:config is KO 
> PASS Fetching about:unicorn is KO 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-expected.txt
>index 49f3ce5e35283454e99e734d39e3917e55324837..8da7aa6959545e34e6472537f8993151048789b5 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-expected.txt
>@@ -11,10 +11,10 @@ CONSOLE MESSAGE: Fetch API cannot load http://localhost:8801/fetch/api/resources
> CONSOLE MESSAGE: Access-Control-Allow-Origin cannot contain more than one origin.
> CONSOLE MESSAGE: Fetch API cannot load http://localhost:8801/fetch/api/resources/preflight.py?origin=%2C%20http%3A%2F%2Fexample.com%2C%20https%3A%2F%2Fexample2.com. Access-Control-Allow-Origin cannot contain more than one origin.
> 
>-FAIL 3 origins allowed, match the 3rd (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match the 3rd ("*") promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match twice (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match twice ("*") promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match twice ("*" and http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL 3 origins allowed, match the 3rd (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match the 3rd ("*") promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match twice (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match twice ("*") promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match twice ("*" and http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
> PASS 3 origins allowed, no match 
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-worker-expected.txt
>index 909cc92d31406c38983d4172150deb2b42eb4b26..81037f7a1007fde0f76c9af552304a5bb25f0255 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-multiple-origins-worker-expected.txt
>@@ -5,10 +5,10 @@ CONSOLE MESSAGE: Access-Control-Allow-Origin cannot contain more than one origin
> CONSOLE MESSAGE: Access-Control-Allow-Origin cannot contain more than one origin.
> CONSOLE MESSAGE: Access-Control-Allow-Origin cannot contain more than one origin.
> 
>-FAIL 3 origins allowed, match the 3rd (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match the 3rd ("*") promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match twice (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match twice ("*") promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL 3 origins allowed, match twice ("*" and http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL 3 origins allowed, match the 3rd (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match the 3rd ("*") promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match twice (http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match twice ("*") promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
>+FAIL 3 origins allowed, match twice ("*" and http://localhost:8800) promise_test: Unhandled rejection with value: object "TypeError: Access-Control-Allow-Origin cannot contain more than one origin."
> PASS 3 origins allowed, no match 
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any-expected.txt
>index 07a66db2606c19f06dba7f7551898819246e0158..918ef8d07a5ec2cd2dce002c13108f7ae8ccc583 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any-expected.txt
>@@ -7,8 +7,8 @@ CONSOLE MESSAGE: Fetch API cannot load http://127.0.0.1:8800/fetch/api/resources
> CONSOLE MESSAGE: Fetch API cannot load http://127.0.0.1:8800/fetch/api/resources/preflight.py?origin=http://localhost:8800&credentials&allow_methods=*&allow_headers=*&. Request header field X-Test is not allowed by Access-Control-Allow-Headers.
> 
> PASS CORS that succeeds with credentials: false; method: GET (allowed: get); header: X-Test,1 (allowed: x-test) 
>-FAIL CORS that succeeds with credentials: false; method: SUPER (allowed: *); header: X-Test,1 (allowed: x-test) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL CORS that succeeds with credentials: false; method: OK (allowed: *); header: X-Test,1 (allowed: *) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL CORS that succeeds with credentials: false; method: SUPER (allowed: *); header: X-Test,1 (allowed: x-test) promise_test: Unhandled rejection with value: object "TypeError: Method SUPER is not allowed by Access-Control-Allow-Methods."
>+FAIL CORS that succeeds with credentials: false; method: OK (allowed: *); header: X-Test,1 (allowed: *) promise_test: Unhandled rejection with value: object "TypeError: Method OK is not allowed by Access-Control-Allow-Methods."
> PASS CORS that fails with credentials: true; method: OK (allowed: *); header: X-Test,1 (allowed: *) 
> PASS CORS that fails with credentials: true; method: PUT (allowed: *); header: undefined (allowed: ) 
> PASS CORS that fails with credentials: true; method: PUT (allowed: put); header: undefined (allowed: *) 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any.worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any.worker-expected.txt
>index ae4cf83e342dfc65f89a53eb3022836cd8a1446a..82cf622f39a78e8f8983ed51907c958339430b60 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any.worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/cors/cors-preflight-star.any.worker-expected.txt
>@@ -1,7 +1,7 @@
> 
> PASS CORS that succeeds with credentials: false; method: GET (allowed: get); header: X-Test,1 (allowed: x-test) 
>-FAIL CORS that succeeds with credentials: false; method: SUPER (allowed: *); header: X-Test,1 (allowed: x-test) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL CORS that succeeds with credentials: false; method: OK (allowed: *); header: X-Test,1 (allowed: *) promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL CORS that succeeds with credentials: false; method: SUPER (allowed: *); header: X-Test,1 (allowed: x-test) promise_test: Unhandled rejection with value: object "TypeError: Method SUPER is not allowed by Access-Control-Allow-Methods."
>+FAIL CORS that succeeds with credentials: false; method: OK (allowed: *); header: X-Test,1 (allowed: *) promise_test: Unhandled rejection with value: object "TypeError: Method OK is not allowed by Access-Control-Allow-Methods."
> PASS CORS that fails with credentials: true; method: OK (allowed: *); header: X-Test,1 (allowed: *) 
> PASS CORS that fails with credentials: true; method: PUT (allowed: *); header: undefined (allowed: ) 
> PASS CORS that fails with credentials: true; method: PUT (allowed: put); header: undefined (allowed: *) 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-expected.txt
>index 1edddcebb194bb7bff057b7cd09774f40fc9c9ae..8a3ce19440d23f516f1684c0ea613ce8e3054c45 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-expected.txt
>@@ -1,12 +1,12 @@
> 
>-FAIL Redirect 301 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 301 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 301 21 times 
>-FAIL Redirect 302 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 302 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 302 21 times 
>-FAIL Redirect 303 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 303 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 303 21 times 
>-FAIL Redirect 307 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 307 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 307 21 times 
>-FAIL Redirect 308 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 308 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 308 21 times 
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-worker-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-worker-expected.txt
>index 1edddcebb194bb7bff057b7cd09774f40fc9c9ae..8a3ce19440d23f516f1684c0ea613ce8e3054c45 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-worker-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/redirect/redirect-count-worker-expected.txt
>@@ -1,12 +1,12 @@
> 
>-FAIL Redirect 301 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 301 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 301 21 times 
>-FAIL Redirect 302 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 302 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 302 21 times 
>-FAIL Redirect 303 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 303 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 303 21 times 
>-FAIL Redirect 307 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 307 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 307 21 times 
>-FAIL Redirect 308 20 times promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL Redirect 308 20 times promise_test: Unhandled rejection with value: object "TypeError: too many HTTP redirects"
> PASS Redirect 308 21 times 
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/request/request-keepalive-quota-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/request/request-keepalive-quota-expected.txt
>index 6b52eb7a46c0c276638c3796033f455463927d1d..f5e5efdb20c9cf55124f4ce4f5c0a386d3df34d2 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/api/request/request-keepalive-quota-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/api/request/request-keepalive-quota-expected.txt
>@@ -1,8 +1,14 @@
>+CONSOLE MESSAGE: line 44: Fetch API cannot load http://localhost:8800/fetch/api/resources/trickle.py?count=1&ms=0. Reached maximum amount of queued data of 64Kb for keepalive requests
>+CONSOLE MESSAGE: line 71: Fetch API cannot load http://localhost:8800/fetch/api/resources/trickle.py?count=1&ms=0. Reached maximum amount of queued data of 64Kb for keepalive requests
>+CONSOLE MESSAGE: Unhandled Promise Rejection: TypeError: Reached maximum amount of queued data of 64Kb for keepalive requests
>+CONSOLE MESSAGE: line 88: Fetch API cannot load http://localhost:8800/fetch/api/resources/trickle.py?count=1&ms=0. Reached maximum amount of queued data of 64Kb for keepalive requests
>+
>+Harness Error (FAIL), message = Reached maximum amount of queued data of 64Kb for keepalive requests
> 
> PASS A Keep-Alive fetch() with a small body should succeed. 
> PASS A Keep-Alive fetch() with a body at the Quota Limit should succeed. 
>-FAIL A Keep-Alive fetch() with a body over the Quota Limit should reject. assert_unreached: Should have rejected: undefined Reached unreachable code
>+PASS A Keep-Alive fetch() with a body over the Quota Limit should reject. 
> PASS A Keep-Alive fetch() should return it's allocated Quota upon promise resolution. 
> PASS A Keep-Alive fetch() should return only it's allocated Quota upon promise resolution. 
>-FAIL A Keep-Alive fetch() should not be allowed if the Quota is used up. assert_unreached: Should have rejected: undefined Reached unreachable code
>+PASS A Keep-Alive fetch() should not be allowed if the Quota is used up. 
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt
>index d5f23f91581efe5966b833be13fb7ea41597e9ec..9c1ea17235eeebc77a8efca1731a51201de3f98d 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt
>@@ -10,5 +10,5 @@ PASS HTTP cache doesn't reuse fresh response when request contains Cache-Control
> PASS HTTP cache validates fresh response with Last-Modified when request contains Cache-Control: no-cache. 
> PASS HTTP cache validates fresh response with ETag when request contains Cache-Control: no-cache. 
> FAIL HTTP cache doesn't reuse fresh response when request contains Cache-Control: no-store. assert_equals: Response used expected 2 but got 1
>-FAIL HTTP cache generates 504 status code when nothing is in cache and request contains Cache-Control: only-if-cached. promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL HTTP cache generates 504 status code when nothing is in cache and request contains Cache-Control: only-if-cached. promise_test: Unhandled rejection with value: object "TypeError: canât load from network"
> 
>diff --git a/LayoutTests/inspector/worker/resources-in-worker-expected.txt b/LayoutTests/inspector/worker/resources-in-worker-expected.txt
>index d143763760a28019ce50e2b332d731a96803aea2..d4207d173378dff5841a9cf86191759032ff904d 100644
>--- a/LayoutTests/inspector/worker/resources-in-worker-expected.txt
>+++ b/LayoutTests/inspector/worker/resources-in-worker-expected.txt
>@@ -1,4 +1,4 @@
>-CONSOLE MESSAGE: line 1: Unhandled Promise Rejection: TypeError: Type error
>+CONSOLE MESSAGE: line 1: Unhandled Promise Rejection: TypeError: The requested URL was not found on this server.
> Test for Resources in a Worker.
> 
> 
>diff --git a/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/api/request/request-cache-only-if-cached-expected.txt b/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/api/request/request-cache-only-if-cached-expected.txt
>index 86f646b0104edaab49310a592b2be330f70eb408..56ae0db573dc2e0175a7ba04928677b22cf3c511 100644
>--- a/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/api/request/request-cache-only-if-cached-expected.txt
>+++ b/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/api/request/request-cache-only-if-cached-expected.txt
>@@ -5,10 +5,10 @@ PASS RequestCache "only-if-cached" mode checks the cache for previously cached c
> PASS RequestCache "only-if-cached" mode checks the cache for previously cached content and avoids revalidation for fresh responses with Last-Modified and fresh response 
> PASS RequestCache "only-if-cached" mode checks the cache for previously cached content and does not go to the network if a cached response is not found with Etag and fresh response 
> PASS RequestCache "only-if-cached" mode checks the cache for previously cached content and does not go to the network if a cached response is not found with Last-Modified and fresh response 
>-FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Etag and fresh response promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Last-Modified and fresh response promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Etag and stale response promise_test: Unhandled rejection with value: object "TypeError: Type error"
>-FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Last-Modified and stale response promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Etag and fresh response promise_test: Unhandled rejection with value: object "TypeError: resource unavailable"
>+FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Last-Modified and fresh response promise_test: Unhandled rejection with value: object "TypeError: resource unavailable"
>+FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Etag and stale response promise_test: Unhandled rejection with value: object "TypeError: resource unavailable"
>+FAIL RequestCache "only-if-cached" (with "same-origin") uses cached same-origin redirects to same-origin content with Last-Modified and stale response promise_test: Unhandled rejection with value: object "TypeError: resource unavailable"
> PASS RequestCache "only-if-cached" (with "same-origin") does not follow redirects across origins and rejects with Etag and fresh response 
> PASS RequestCache "only-if-cached" (with "same-origin") does not follow redirects across origins and rejects with Last-Modified and fresh response 
> PASS RequestCache "only-if-cached" (with "same-origin") does not follow redirects across origins and rejects with Etag and stale response 
>diff --git a/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt b/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt
>index 74534ee25fc8ed1c9961fbdf582b9bba1f14121d..6db5c3d09b548cce57536adc1e41c279b1fcc3ca 100644
>--- a/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt
>+++ b/LayoutTests/platform/mac-wk1/imported/w3c/web-platform-tests/fetch/http-cache/cc-request-expected.txt
>@@ -10,5 +10,5 @@ PASS HTTP cache doesn't reuse fresh response when request contains Cache-Control
> PASS HTTP cache validates fresh response with Last-Modified when request contains Cache-Control: no-cache. 
> PASS HTTP cache validates fresh response with ETag when request contains Cache-Control: no-cache. 
> PASS HTTP cache doesn't reuse fresh response when request contains Cache-Control: no-store. 
>-FAIL HTTP cache generates 504 status code when nothing is in cache and request contains Cache-Control: only-if-cached. promise_test: Unhandled rejection with value: object "TypeError: Type error"
>+FAIL HTTP cache generates 504 status code when nothing is in cache and request contains Cache-Control: only-if-cached. promise_test: Unhandled rejection with value: object "TypeError: canât load from network"
>

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Attachments on bug 175482: 317939 | 317941 | 317951 | 317955 | 317961 | 317965 | 317968 | 317971 | 317976 | 317984 | 317985 | 318048 | 318051 | 318058 | 318065 | 318068 | 318073 | 318097 | 318110 | 318131