[Webkit-unassigned] [Bug 248224] [GTK] YouTube player is unresponsive, extremely slow scrolling on pages with video

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=248224

--- Comment #14 from kdwkleung at protonmail.com ---
I have new progress in investigating why YouTube player pages freeze when I'm logged in to Google but not when I'm logged out...

When I'm logged in and open a player page, the console always have this line of error: `[Error] Failed to load resource: Error reading data from TLS socket: An unexpected TLS packet was received. (generate_204, line 0)`

While player page when not logged in (in Incognito mode) would not have this error. Incognito mode, logged in, would have this error too.

The curl request is for the resource (taken from Web Inspector -> Network):

curl 'https://rr2---sn-ibj-i3be6.googlevideo.com/generate_204' \
-X 'GET' \
-H 'Accept: image/webp,image/avif,video/*;q=0.8,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5' \
-H 'Referer: https://www.youtube.com/' \
-H 'Sec-Fetch-Dest: image' \
-H 'Sec-Fetch-Mode: no-cors' \
-H 'Sec-Fetch-Site: cross-site' \
-H 'User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.4 Safari/605.1.15'

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