311616 2026-04-06 23:15:16 -0700 AX: Web Content processes shouldn't send the accessibility remote token until after accessibility is initialized 2026-04-13 14:15:06 -0700 1 1 1 Unclassified WebKit Accessibility WebKit Nightly Build All All RESOLVED FIXED InRadar P2 Normal --- 311878 1 dm_mazzoni dm_mazzoni andresg_22 commit-queue webkit-bug-importer oldest_to_newest 2197505 0 dm_mazzoni 2026-04-06 23:15:16 -0700 There's a race condition where if you start VoiceOver after Safari is already running, VoiceOver discovers the WKAccessibilityWebPageObject - the root of the web content accessibility tree - before the web content process has initialized accessibility. The result is that attribute queries fail and the object returns nil for its attributes. VoiceOver gets confused when a child returns nil for its AXRole, and fails to query it again. The fix is to not send the remote token until after accessibility is initialized. That way the UI process WebViewImpl won't expose the remote element until it's actually ready. 2197506 1 webkit-bug-importer 2026-04-06 23:15:22 -0700 <rdar://problem/174215797> 2197507 2 dm_mazzoni 2026-04-06 23:18:28 -0700 Pull request: https://github.com/WebKit/WebKit/pull/62169 2197649 3 ews-feeder 2026-04-07 08:48:08 -0700 Committed 310711@main (5e880b636f8d): <https://commits.webkit.org/310711@main> Reviewed commits have been landed. Closing PR #62169 and removing active labels. 2198565 4 commit-queue 2026-04-09 16:17:57 -0700 Re-opened since this is blocked by bug 311878 2199883 5 ews-feeder 2026-04-13 14:14:57 -0700 Committed 305413.652@safari-7624-branch (aa4c47512294): <https://commits.webkit.org/305413.652@safari-7624-branch> Reviewed commits have been landed. Closing PR #4916 and removing active labels.