CSS quotes property - support 'auto' value

CSS

Support 'auto' for the 'quotes' property. CSS2 specified the initial value for 'quotes' as UA dependent, but WebKit and Blink returns an invalid value (empty string) which will not round-trip. Setting it to the empty string will remove the declaration instead of setting it to the initial value. css-content-3 instead uses an 'auto' keyword for the default UA behavior.

Motivation

Fix brokenness in current implementation and align with spec and Firefox.

Specification

Working draft or equivalent

Status in Chromium

Blink components: Blink

Enabled by default (tracking bug) in:

Chrome for desktop release 87
Chrome for Android release 87
Android WebView release 87

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

Firefox: Shipped/Shipping
Edge: N/A
Safari: Shipped/Shipping
Web Developers: No signals

Owner

futhark@chromium.org

Last updated on 2020-10-25