[Webkit-unassigned] [Bug 228208] WebGL 2 performance differs in landscape and portrait mode

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=228208

--- Comment #9 from Kenneth Russell <kbr at google.com> ---
I'm not sure but have you configured the viewport properly for mobile?

https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/UsingtheViewport/UsingtheViewport.html#//apple_ref/doc/uid/TP40006509-SW1

also see
https://webkit.org/blog/7929/designing-websites-for-iphone-x/

Maybe because the initial-scale isn't configured, or similar, then the window's receiving a very large size in portrait orientation.

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