[CSS] Implement :-webkit-autofill in Firefox

[chrisdavidmills]

Acceptance criteria

1. • The listed features are documented sufficiently on MDN
2. • BCD is updated
3. • Interactive example and data repos are updated if appropriate
4. • The content has been reviewed as needed

Features to document

1. :-webkit-autofill. We already have a page about this, but it is pretty thin — could do with compat data, an interactive example, etc.

Related Gecko bugs

1. • Consider adding support for -webkit-autofill (and a default stylesheet using it) for interop with Chrome
2. • Enable :autofill / :-webkit-autofill support on release channels.

For folks helping with Firefox-related documentation features — make sure above AC have been done, but also:

• Set bugs to dev-doc-complete
• Add entry to Firefox release notes if feature is enabled in release
• Add entry to Firefox experimental features page if feature is not yet enabled in release

[rachelandrew]

@chrisdavidmills there is now an :autofill pseudo added to the HTML 5 spec, and Firefox is implementing that with the webkit prefix as an alias. So I want to move the current page at https://developer.mozilla.org/en-US/docs/Web/CSS/:-webkit-autofill to https://developer.mozilla.org/en-US/docs/Web/CSS/:autofill

I found the redirects file, but adding a redirect from the webkit version to autofill doesn't seem to be working (I get a 404) is there something else to do to move a page?

[chrisdavidmills]

@rachelandrew you also need to explicitly move the page to the new location in the repo, and update its title, slug, etc.

This is done via the yarn content move command; see https://github.com/mdn/content#moving-one-or-more-documents

[rachelandrew]

hmm I'd done that by hand already, it's showing up at the new location just the redirect isn't working.

[chrisdavidmills]

Hrm, ok, so that should work then. Can I have a look at your redirect syntax?

[rachelandrew]

ah just had a thought, needed to restart the server. Guess it only reads that file on start up?

[chrisdavidmills]

Ah yes.

[rachelandrew]

I've updated the bugs, added to release notes. BCD is pending merge.

This isn't really a candidate for an Interactive Example.

[chrisdavidmills]

This is all looking good; thanks @rachelandrew !