Compatibility/Mobile/Non Standard Compatibility
< Compatibility | Mobile
Non-standard APIs and Properties required for Web Compatibility
This page contains a list of CSS and DOM properties & APIs required for compatibility with the de-facto (mobile) web.
Each is grouped into a group of relative priority, as perceived by the Web Compat team (based on known issues in Bugzilla and webcompat.com and other investigations).
Parts of this list will eventually make its way into the Compatibility Standard.
This document of WebKit stuff implemented in Microsoft Edge also serves as a guide, though not everything will be as important for Gecko.
CSS properties (presumably including their DOM property equivalent?)
High Priority
- webkit-flexbox
- webkit-background* (including gradient)
- webkit-transforms
- webkit-transitions
Medium Priority
- -webkit-appearance (or at least -moz-appearance to behave in the same way)
- background-position-x/y
Lower Priority
- -webkit-device-pixel-ratio
- webkit-border*
- webkit-fullscreen*
- webkit-multicol
- webkit-animation
Super Hard but would fix many cosmetic issues (maybe create more?)
- max-width 100% inside of table (975632 + blockers/dependencies, related, etc)
DOM APIs
High Priority
- window.orientation/orientationchange event
- WebKitCSSMatrix
Medium Priority
- innerText (needs spec work)
Video
- HLS video (.m3u8). Possibly Patent encumbered?