[Webkit-unassigned] [Bug 74059] New: WebKit consumes a lot of memory in unused undo stack on GMail

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=74059

           Summary: WebKit consumes a lot of memory in unused undo stack
                    on GMail
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: darin at apple.com, enrica at apple.com,
                    gregsimon at chromium.org


It appears that we only clear undo stack when the main frame is unloaded (at least on Chromium) but the user never navigates on GMail so this becomes an issue. We end up accumulating tons of EditingText, spans, divs, etc... we created along the way in the undo stack even though GMail's editor never use them (they have their own undo stack).

We should at least clear EditCommands that belong to unloaded frames.

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