1720445 - Codepen animation is not rendered as expected

Status: NEW

(Core :: Graphics: Canvas2D, defect)

Description

[Catalin Sasca, Desktop Test Engineering [:csasca]]

Affected versions

• Firefox 91.0b2
• Firefox 92.0a1

Affected platforms

• Windows 10
• Ubuntu 20.04
• macOS 11.4

Steps to reproduce

1. Launch Firefox
2. Access Codepen animation

Expected result

• The rendering of the animation is correct

Actual result

• The animation will get white and will lag the system

Regression range

• Will see for a regression

Additional notes

• The issue can be seen in the following attachment (comparison between Firefox and Chrome)
• Windows 10 animation will still get white but the glitched text can also be seen
• While stretching Firefox window, the animation will be visible, and will get white back as soon as the user doesn't stretch it anymore

Comment 1

[Oana Botisan, Desktop QA]

This is not a regression. I can reproduce the issue on a build from 2016-01-03 and before that the link is not opened because of incompatibility issues.