Bug 1764891 Comment 0 Edit History

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Original comment by
on 
STR:
1. Visit https://codepen.io/sarazond/pen/LYGbwj.
2. Note the smoothness of the starfield animation.
3. Move the mouse cursor constantly over the iframe containing the animation.

Expected:

The animation is always smooth.

Actual:

The animation is only smooth whent the cursor is moving over the iframe area. Opening the frame in a new tab does not have the problem. It also does not occur with `dom.animations.offscreen-throttling = false` or with `fission.autostart = false`.

Regressed by Bug 1732358.
Revision 1 by
on 
STR:
1. Visit https://codepen.io/sarazond/pen/LYGbwj.
2. Note the smoothness of the starfield animation.
3. Move the mouse cursor constantly over the iframe containing the animation.

Expected:

The animation is always smooth.

Actual:

The animation is only smooth when the cursor is moving over the iframe area. Opening the frame in a new tab does not have the problem. It also does not occur with `dom.animations.offscreen-throttling = false` or with `fission.autostart = false`.

Regressed by Bug 1732358.

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