On Tue, Aug 1, 2017 at 11:40 PM, Andreas Kling <[email protected]> wrote: > >> On 2 Aug 2017, at 01:03, Ryosuke Niwa <[email protected]> wrote: >> >> On Mon, Jul 31, 2017 at 1:49 AM, Andreas Kling <[email protected]> wrote: >>> 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! >> >> Since we've been shipping CSS regions for a while, I think the first >> step we should take would be disabling the feature on trunk, and put >> that into STP and other ports' releases so that we can easily revert >> the change if we find out any Web content to be broken when the >> feature is disabled. > >> Unless there is evidence of at least one major site or client depending on >> CSS regions, I don’t agree that such a slow removal process is necessary. > > IMO doing that would only further increase the maintenance burden incurred by > the feature, since we’d have to add tons of runtime checks throughout the > codebase.
Given my concern is the compatibility, not the maintenance cost, what is the evidence that nobody is relying on this feature? It seems a little crazy to remove a feature that has been available (prefixed) since Safari 6.2 without any prior warning or gathering any usage metrics at all. Also see: https://trac.webkit.org/wiki/DeprecatingFeatures > I would feel differently if we were pioneering this removal, but since we’ve > already seen it succeed in Blink I’m far less concerned. I'm more concerned about iOS and macOS apps that use WebKit than the Web content in the wild. - R. Niwa _______________________________________________ webkit-dev mailing list [email protected] https://lists.webkit.org/mailman/listinfo/webkit-dev
