[webkit-dev] Removing support for CSS regions

Andreas Kling akling at apple.com
Mon Jul 31 01:49:27 PDT 2017

Hi folks,

Some time has passed, and it seems that adoption of CSS regions on the web is not gonna happen.

Blink has long since removed their support.
Firefox never supported it AFAIK.
(The new) IE has some amount of support behind a prefix, but no plans to unprefix AFAIK.

I think it’s time we remove the code from WebKit, and relieve ourselves of the maintenance burden.
This should also open up numerous opportunities for clean-up and optimization.

If you know of any reason to keep the feature, such as a major website or WebKit client depending on it, do speak up now!

The removal work will be tracked in this bug:


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