[Webkit-unassigned] [Bug 208642] REGRESSION: (r257905) [ Mac wk2 Debug ] ASSERTION FAILED: !m_isolatedWorld->isNormal() || m_wrapper || !m_jsFunction

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=208642

--- Comment #9 from Ryosuke Niwa <rniwa at webkit.org> ---
The assertion is saying that if m_jsFunction is not null, then m_wrapper shouldn't be null. This must be true because any event target with a valid JS event listener should have had a wrapper when the event listener was added, and the wrapper should never be collected as long as the event listener can be invoked.

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