[web backend] Make sure we only request animation once per frame #1790
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Earlier we call `requestAnimationFrame` every time on `invalidate_rect` or `request_anim_frame`. This lead to even `render()` being called many times per frame and hence poor performance.
jneem
approved these changes
May 19, 2021
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Earlier we call
requestAnimationFrameevery time oninvalidate_rector
request_anim_frame. This lead to evenrender()being called manytimes per frame and hence poor performance.