[Webkit-unassigned] [Bug 262219] Previously focused form input elements are not getting garbage collected

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=262219

--- Comment #14 from Cristian Linte <ioancris at adobe.com> ---
Additional observations:
Sometimes the heap snapshot shows more than 2 Windows that are usually expected: main window and window for FormMetadataJS. Sometimes window (context) is created that contains ReaderArticleFinderJS and two other windows that contain OpenSearchURLFinder and extractMediaServiceSubscription.

The ReaderArticleFinderJS window is problematic also because it keeps references to DOM nodes from the page and keeps references to many more DOM nodes than FormMetadataJS. I haven't investigate how much of an issue this is and when the references are removed or new ones added. Also ReaderArticleFinderJS is rarely loaded and not sure what triggers it making testing and reproducing harder.

Sometimes I've seen heap snapshots where there are two windows, TBD if more, with FormMetadataJS. Unclear what the impact of that is. That seems unexpected because Safari creates one FrameMetadata per frame and caches it in a HashMap with the key being `WKWebProcessPlugInFrame*` that was passed from Webkit. If multiple window shows up in the heap snapshot that might indicate that there are multiple FrameMetadata in that hash map for different frames but why would it show up in the heap snapshot of a different frame?

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20231120/6c89b780/attachment-0001.htm>