Bug 239856

Summary: [GTK] Certain page kills CPU, media playback kills the page
Product: WebKit Reporter: Milan Crha <mcrha>
Component: WebKitGTKAssignee: Nobody <webkit-unassigned>
Status: REOPENED    
Severity: Normal CC: bugs-noreply, mcatanzaro, philn
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   

Milan Crha
Reported 2022-04-28 09:30:15 PDT
This is with webkit2gtk3-2.36.0-1.fc36.x86_64 epiphany-42.0-1.fc36.x86_64 but reproduced also with the MiniBrowser, thus filling here. Open: https://finance.yahoo.com/quote/TSLA?p=TSLA You'll be asked for cookies, I simply disable everything, which is two-clicks task here - thank you Yahoo!. Two problems: 1) after the page loads see the graph and keep the page staying; enjoy a WebKitWebProcess chewing your CPU. 2) scroll lower on the page - there's a video; - epiphany has an "autoplay without sound" by default, unless you happen to disable it earlier, once the video loads the page freezes, completely; I tried to Deny autoplay, but it didn't help, the page froze anyway. - Minibrowser - claims missing H.264 (High Profile) decoder. - keep the message there and scroll lower on the screen, until the video is shown and it begins loading; wait several seconds, once CPU calms down the page is frozen. I moved even lower on the page, but I think the problem is once the video loads
Attachments
Milan Crha
Comment 1 2022-04-29 01:49:35 PDT
Michael, did you remove the "Performance" keyword intentionally? This does relate to performance, a lot.
Michael Catanzaro
Comment 2 2022-04-29 06:51:33 PDT
Yeah, that keyword is best reserved for developers working with performance tests.
Milan Crha
Comment 3 2022-05-02 06:00:24 PDT
This seems to cure with the 2.36.1 update, thus I'm closing this.
Milan Crha
Comment 4 2022-05-02 09:20:13 PDT
(In reply to Milan Crha from comment #3) > This seems to cure with the 2.36.1 update, thus I'm closing this. Oh, I'm sorry, it seems Yahoo! update the page and it's still there. I guess it's related to the videos on the page, though it's killing the CPU even when I have the video autoplay set to "Deny" in the Epiphany.
Philippe Normand
Comment 5 2022-07-11 09:09:20 PDT
I can reproduce issue #1 but not #2 with Ephy TP.
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