Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 477da9e88b088af19d94576d944691f5f1b83a65
      
https://github.com/WebKit/WebKit/commit/477da9e88b088af19d94576d944691f5f1b83a65
  Author: Chris Dumez <[email protected]>
  Date:   2026-01-16 (Fri, 16 Jan 2026)

  Changed paths:
    M Source/WebCore/platform/PlatformSpeechSynthesizer.h
    M Source/WebCore/platform/cocoa/PlatformSpeechSynthesizerCocoa.mm

  Log Message:
  -----------
  Regression(305673@main): Crash under 
RefCountDebugger::applyRefDerefThreadingCheck()
https://bugs.webkit.org/show_bug.cgi?id=305628
rdar://168285130

Reviewed by Ryosuke Niwa.

Address the crash by only ref'ing the PlatformSpeechSynthesizer on the
main thread.

* Source/WebCore/platform/PlatformSpeechSynthesizer.h:
* Source/WebCore/platform/cocoa/PlatformSpeechSynthesizerCocoa.mm:
(WebCore::PlatformSpeechSynthesizer::appendVoices):
(WebCore::PlatformSpeechSynthesizer::initializeVoiceList):

Canonical link: https://commits.webkit.org/305701@main



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