Bug 272440 – [css-animations] CSS animation="none" property should stay as is

• Component: Animations
• Status: RESOLVED CONFIGURATION CHANGED

[Karl Dubost]

Enter in STP 191
  data:text/html,<div%20style="animation:none"></div>
In the Web Inspector console, type
  document.querySelector('div').style.getPropertyValue('animation')

It returns 0s instead of none.

This fails the test 
http://wpt.live/css/css-animations/parsing/animation-valid.html
http://wpt.fyi/css/css-animations/parsing/animation-valid.html

Firefox and Chrome return the correct value.

[Radar WebKit Bug Importer]

<rdar://problem/126186241>

[Antoine Quint]

This test was added in https://github.com/web-platform-tests/wpt/commit/ec49f0a0b605c79a343c9e6a12126502cee58638 and is related to the change in the CSS Animations spec to report `auto` instead of `0s` as the default animation-duration value. Compare and contrast:

https://drafts.csswg.org/css-animations-1/#animation-duration
https://drafts.csswg.org/css-animations-2/#animation-duration

This is part of the scroll-linked animations work.

[Karl Dubost]

Everything is green on. 
http://wpt.fyi/results/css/css-animations/parsing/animation-valid.html

BUT 
data:text/html,<div%20style="animation:none"></div>
document.querySelector('div').style.getPropertyValue('animation')

NOW returns on 

STP 230: "auto" 
Firefox: "none"
Chrome: "auto ease 0s 1 normal none running none"

[Karl Dubost]

Probably the better test is now 
http://wpt.fyi/results/css/css-animations/parsing/animation-computed.html

[Antoine Quint]

Both the WPT tests listed are green on Safari (and Firefox). Should we close this?