Chrome Version: 69

What steps will reproduce the problem?
(1) Enable flag chrome://flags/#enable-experimental-web-platform-features
(2) Visit http://jsfiddle.net/z8tn1ruo/4/
(3) Inspect blue square.

What is the expected result?

"--test: invalid" should be crossed out like "color: invalid"

What happens instead?

"--test: invalid" shows up as if it's accepted by the syntax.

Please use labels and text to provide additional information.

If this is a regression (i.e., worked before), please consider using the
bisect tool (https://www.chromium.org/developers/bisect-builds-py) to help
us identify the root cause and more rapidly triage the issue.

For graphics-related bugs, please copy/paste the contents of the about:gpu
page at the end of this report.


 

Deleted: Screenshot from 2018-07-09 11-29-11.png 238 KB

	Screenshot from 2018-07-09 11-29-11.png 238 KB View Download