322721 2026-08-27 08:54:36 -0700 Focus change despite pointer down preventDefault() when click handler is present on element (iOS only). 2026-09-03 08:55:15 -0700 1 1 1 Unclassified WebKit UI Events Safari 26 iPhone / iPad iOS 26 NEW https://bugs.webkit.org/show_bug.cgi?id=316402 InRadar P2 Normal --- 1 ian webkit-unassigned a_protyasha lily_spiniolas webkit-bug-importer oldest_to_newest 2244340 0 481182 ian 2026-08-27 08:54:36 -0700 Created attachment 481182 Repro On iOS / iPadOS, but not macOS, when an element has a click handler, invoking event.preventDefault() in that element's pointer down event handler does not prevent a focus change, it only prevents a focus change to that element; The active element will still lose focus. preventDefault() _does_ work as expected when invoked on a mouse down event. Repro: https://codepen.io/editor/Ian-Bellomy/pen/01a043de-9308-72ec-bd61-a8a90c30d887 2244348 1 ian 2026-08-27 09:12:29 -0700 This bug may be a duplicate of https://bugs.webkit.org/show_bug.cgi?id=316402 However, that report points to an interaction with tab-index, but here tab-index is irrelevant. 2246886 2 webkit-bug-importer 2026-09-03 08:55:15 -0700 <rdar://problem/186572811> 481182 2026-08-27 08:54:36 -0700 2026-08-27 08:54:36 -0700 Repro ios-focus-issue.html text/html 1658 ian PCFkb2N0eXBlIGh0bWw+CjxtZXRhIG5hbWU9InZpZXdwb3J0IiBjb250ZW50PSJ3aWR0aD1kZXZp Y2Utd2lkdGgsIGluaXRpYWwtc2NhbGU9MSI+Cjx0aXRsZT5pT1MgZm9jdXMgaXNzdWU8L3RpdGxl Pgo8c3R5bGU+Cglib2R5IHsKCQlmb250OiAxNnB4IHN5c3RlbS11aSwgc2Fucy1zZXJpZjsKCQlt YXJnaW46IDJyZW07CgkJZGlzcGxheTogZmxleDsKCQlmbGV4LWRpcmVjdGlvbjogY29sdW1uOwoJ CWdhcDogMXJlbTsKCX0KCgkjc2VhcmNoIHsKCQl3aWR0aDogMTZyZW07CgkJcGFkZGluZzogLjZy ZW07Cgl9CgoJLmJ1dHRvbiB7CgkJcGFkZGluZzogMC4yNXJlbSAwLjVyZW07CgkJYmFja2dyb3Vu ZC1jb2xvcjogI2RkZDsKCQlmb250LXNpemU6IDAuOHJlbTsKCQl3aWR0aDogZml0LWNvbnRlbnQ7 CgkJY3Vyc29yOiBwb2ludGVyOwoJfQoKPC9zdHlsZT4KCjxib2R5PgoKCTxpbnB1dCBpZD0ic2Vh cmNoIiB0eXBlPSJ0ZXh0IiBhdXRvY29tcGxldGU9Im9mZiIgcGxhY2Vob2xkZXI9IkZvY3VzIHNo b3VsZCByZW1haW4gaGVyZSBvbiBidXR0b24gcHJlc3NlcyI+Cgk8ZGl2IGNsYXNzPSJidXR0b24i IGlkPSJtb3VzZUJ1dHRvbiI+TW91c2VEb3duPC9kaXY+Cgk8ZGl2PgoJCTxkaXYgY2xhc3M9ImJ1 dHRvbiIgaWQ9InBvaW50ZXJCdXR0b24iPlBvaW50ZXJEb3duPC9kaXY+Cgk8L2Rpdj4KCgk8c2Ny aXB0PgoKCQljb25zdCBpbnB1dCA9IGRvY3VtZW50LnF1ZXJ5U2VsZWN0b3IoIiNzZWFyY2giKTsK CgkJaW5wdXQuZm9jdXMoKTsKCgkJY29uc3QgcG9pbnRlckJ1dHRvbiA9IGRvY3VtZW50LnF1ZXJ5 U2VsZWN0b3IoIiNwb2ludGVyQnV0dG9uIikKCQljb25zdCBtb3VzZUZhdXhCdXR0b24gPSBkb2N1 bWVudC5xdWVyeVNlbGVjdG9yKCIjbW91c2VCdXR0b24iKQoKCQltb3VzZUZhdXhCdXR0b24uYWRk RXZlbnRMaXN0ZW5lcigibW91c2Vkb3duIiwgKGV2ZW50KSA9PiB7CgkJCWNvbnNvbGUubG9nKCJt b3VzZSBkb3duIikKCQkJLy8gUHJldmVudHMgZm9jdXMgY2hhbmdlIGluIGlPUyBhbmQgbWFjT1Mu CgkJCWV2ZW50LnByZXZlbnREZWZhdWx0KCk7CgkJfSk7CgoJCW1vdXNlRmF1eEJ1dHRvbi5hZGRF dmVudExpc3RlbmVyKCJjbGljayIsICgpID0+IHsKCQkJY29uc29sZS5sb2coIkNsaWNrIik7CgkJ fSk7CgoJCXBvaW50ZXJCdXR0b24uYWRkRXZlbnRMaXN0ZW5lcigicG9pbnRlcmRvd24iLCAoZXZl bnQpID0+IHsKCQkJY29uc29sZS5sb2coInBvaW50ZXIgZG93biIpCgkJCS8vIE91dHNpZGUgb2Yg aU9TLCB0aGlzIHByZXZlbnRzIGZvY3VzIGNoYW5nZS4KCQkJLy8gSW4gaU9TLCBpdCBwcmV2ZW50 cyB0aGUgZWxlbWVudCBpdGVtIGZyb20gZ2FpbmluZyBmb2N1cywgYnV0IGlmIHRoZXJlJ3MgYSBj bGljayBoYW5kbGVyLCB0aGUgZm9jdXMgbGVhdmVzIHRoZSBpbnB1dCwgZW5kaW5nIHVwIG9uIGJv ZHkuCgkJCWV2ZW50LnByZXZlbnREZWZhdWx0KCk7CgkJfSk7CgoJCS8vIElmIHRoaXMgaGFuZGxl ciBpcyBwcmVzZW50LCBwcmV2ZW50RGVmYXVsdCBvbiBwb2ludGVyRG93biBmYWlscyB0byBwcmV2 ZW50IGZvY3VzIGNoYW5nZS4KCQlwb2ludGVyQnV0dG9uLmFkZEV2ZW50TGlzdGVuZXIoImNsaWNr IiwgKGUpID0+IHsKCQkJY29uc29sZS5sb2coIkNsaWNrIik7CgkJfSk7CgoJPC9zY3JpcHQ+Cjwv Ym9keT4=