LibWeb/CSS: Support inherit custom properties on :root

Make sure we have a parent element before trying to look at it!

I've also pulled out a stub function for getting a custom property's
initial value, so that there's only one place to change once we support
`@property` more.
This commit is contained in:
Sam Atkins 2025-07-14 12:50:58 +01:00 committed by Jelle Raaijmakers
commit b3abbeab89
Notes: github-actions[bot] 2025-07-15 08:37:17 +00:00
3 changed files with 28 additions and 8 deletions

View file

@ -0,0 +1 @@
PASS! (Didn't crash)