In bug 1644102 (targeting Firefox 101) I enabled Constructable Stylesheets on all channels. This is an API that allows authors to programmatically share stylesheets across ShadowRoot instances, instead of relying on engine optimizations for example.
This should improve memory usage (unclear if performance, in practice) of large web component libraries (by avoiding having large DOM text nodes duplicated for each component in inline styles).
Specification: https://drafts.csswg.org/cssom/#the-cssstylesheet-interface Standards Body: W3C Platform coverage: All Preference: layout.css.constructable-stylesheets.enabled DevTools bug: bug 1602535, bug 1769933 Other browsers:The history of this feature is kind of turbulent. Chrome shipped way too early, IMO, without accounting for various spec issues like https://github.com/WICG/construct-stylesheets/issues/45.
Thanks to the work of a lot of people we could reach to an agreement and update the spec to address such concerns by using ObservableArray. I believe this is now in good shape to ship, but let me know if there are any concerns.
* Chromium: Shipped* Safari: Not Yet Implemented (https://bugs.webkit.org/show_bug.cgi?id=228684)
Thanks to Erik Nordin for all the initial work on the feature, to Edgar Chen and Peter Van der Beken for implementing ObservableArray support and their reviews, and to Nicolas Chevobbe for all the DevTools review.
Cheers, -- Emilio -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/mozilla.org/d/msgid/dev-platform/2bfcbaa2-908a-cab3-3f62-3d93d3a9a85c%40mozilla.com.
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