RESOLVED FIXED 165875
ScriptFunctionCall::call() can return an empty JSValue if the watchdog timer fires, callers should check for this 
https://bugs.webkit.org/show_bug.cgi?id=165875
Summary ScriptFunctionCall::call() can return an empty JSValue if the watchdog timer ...
Michael Saboff
Reported 2016-12-14 15:06:22 PST
Many callers of ScriptFunctionCall::call() assume that it returns a valid, non-empty JSValue. Most of these callers do not check for this. They should be fixed as appropriate.
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Michael Saboff
Comment 1 2016-12-14 15:33:44 PST
rdar://problem/29671015
Yury Semikhatsky
Comment 2 2023-11-10 18:20:29 PST
We've crashes due to an empty value on Windows around this call in particular https://github.com/WebKit/WebKit/blob/020f297aadfe1e55b3d238dfc7922cfa193ceae3/Source/JavaScriptCore/inspector/InjectedScript.cpp#L292 in Playwright.
Yury Semikhatsky
Comment 3 2023-11-10 18:33:41 PST
Pull request: https://github.com/WebKit/WebKit/pull/20353
EWS
Comment 4 2023-11-14 18:25:08 PST
Committed 270739@main (a4eed62b176c): <https://commits.webkit.org/270739@main> Reviewed commits have been landed. Closing PR #20353 and removing active labels.
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