[Webkit-unassigned] [Bug 215490] New: canvas can't release when close the tab create by safari web extension

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215490

            Bug ID: 215490
           Summary: canvas can't release when close the tab create by
                    safari web extension
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Macintosh
                OS: Other
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: wooyai at gmail.com
                CC: dino at apple.com

the safari version info Version 14.0 (15610.1.23, 15610), 
I try to port my chrome extension to safari, and use chrome.tabs.create to create tab and use canvas ,and close the tab, but didn't release the memory. and repeat several times have the warning Total canvas memory use exceeds the maximum limit (2151 MB).pain

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