[Webkit-unassigned] [Bug 274802] New: REGRESSION(2.45): [GStreamer] Excessive CPU usage from cached web process after closing ksdk.com page, failure to display web content after reopening page

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=274802

            Bug ID: 274802
           Summary: REGRESSION(2.45): [GStreamer] Excessive CPU usage from
                    cached web process after closing ksdk.com page,
                    failure to display web content after reopening page
           Product: WebKit
           Version: Other
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at redhat.com
                CC: bugs-noreply at webkitgtk.org

This is almost exactly the same as bug #274261, except the reproducer website is different:

https://www.ksdk.com/article/news/local/business-journal/why-fewer-cicadas-in-city-of-st-louis/63-387e0227-992c-43f0-80a7-ceaa892a3561?fbclid=IwZXh0bgNhZW0CMTEAAR2haCCONxEqI_SUqSL7ZfjyCQp1vUNTda_lcr7amZH9LuEdFxb-gllbGhQ_aem_AYtd79h6GJYg-D0MbLsiyXo6X6xoUami6ydQijOVtcKrfCeEoXhbuoNmTHbIlNU8PuzYdRluirZ57BMzdQ07BrYE

instead of nbcnews.com, and also the underlying cause of the bug is different. Bug #274261 was introduced by 276798 at main and fixed in 278929 at main. But the the problem on this website is not fixed.

I'm having trouble tracking it down, though, because I can only reproduce in Epiphany Tech Preview using WebKitGTK 2.45.2. When I attempt to reproduce the issue in my jhbuild environment so that I can bisect it, the video just doesn't play at all. I wonder if I need to build a bunch of GStreamer stuff in my jhbuild to make the video work.

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