[css-scrollbar] `scrollbar-width` animation type wrong?

[lukewarlow]

According to the current specification the animation type of scrollbar-width is "by computed value" but this property only supports 3 keywords so I would expect it to be "discrete"?

[frivoal]

You're right, this is a leftover from when scrollbar-width took <length> values. It no longer does, so switching to discrete does make sense.

[frivoal]

Fixed in d72cc57

[lukewarlow]

What test case would be required for this? I'd be happy to file a PR to the WPT repo for them.

https://github.com/web-platform-tests/wpt/pull/40124/files I've already added it as discrete to the animation property list (change from where I implemented parsing for it in WebKit)

If there's any other tests that need changing let me know

[frivoal]

I hadn't seen that test, thank you for the cross reference. That seems to cover it at least at the basic level. Some ref-test would be nice to have too, to confirm that it's doing the right thing not just at the API level, but also visually, but with scrollbars, that can be a little hard to construct.