Bug 1541072 Comment 12 Edit History

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Original comment by
on 
(In reply to Jan Andre Ikenmeyer [:darkspirit] from comment #11)
> Created attachment 9076413 [details]
> 2019-07-08 03-23-14.mp4

The scrolling jump as seen on the left side of the screencast is also reproducible with
* today's Nightly and gfx.webrender.force-disabled;true layout.css.scroll-anchoring.enabled;false
* mozregression --launch 2017-03-15 --pref browser.startup.homepage:'https://www.reddit.com/r/firefox/'

Scroll anchoring made an existing non-WR bug look worse with WebRender, but apparently fixed it for non-WR.
Revision 1 by
on 
(In reply to Jan Andre Ikenmeyer [:darkspirit] from comment #11)
> Created attachment 9076413 [details]
> 2019-07-08 03-23-14.mp4

The scrolling jump as seen on the left side of the screencast is also reproducible with
* today's Nightly and gfx.webrender.force-disabled;true layout.css.scroll-anchoring.enabled;false
* mozregression --launch 2017-03-15 --pref browser.startup.homepage:'https://www.reddit.com/r/firefox/'

Conclusion: Scroll anchoring made an existing non-WR bug look worse with WebRender, but apparently fixed it for non-WR.
Revision 2 by
on 
(In reply to Jan Andre Ikenmeyer [:darkspirit] from comment #11)
> Created attachment 9076413 [details]
> 2019-07-08 03-23-14.mp4

The scroll jump as seen on the left side of the screencast is also reproducible with
* today's Nightly and gfx.webrender.force-disabled;true layout.css.scroll-anchoring.enabled;false
* mozregression --launch 2017-03-15 --pref browser.startup.homepage:'https://www.reddit.com/r/firefox/'

Conclusion: Scroll anchoring made an existing non-WR bug look worse with WebRender, but apparently fixed it for non-WR.

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