WebKit Igalia Periodical #22

The Cookie Store API is now enabled by default, and CSS Overscroll Behaviour was enabled as well.

The GstWPE2 GStreamer plugin landed in GStreamer main, it makes use of the WPEPlatform API. It will ship in GStreamer 1.28. Compared to GstWPE1 it provides the same features, but improved support for NVIDIA GPUs. The main regression is lack of audio support, which is work-in-progress, both on the WPE and GStreamer sides.

Work on enabling the in-place Wasm interpreter (IPInt) on 32-bits has progressed nicely

The JSC tests runner can now guard against a pathological failure mode.

In JavaScriptCore's implementation of Temporal, Tim Chevalier fixed the parsing of RFC 9557 annotations in date strings to work according to the standard. So now syntactically valid but unknown annotations [foo=bar] are correctly ignored, and the ! flag in an annotation is handled correctly. Philip Chimento expanded the test suite around this feature and fixed a couple of crashes in Temporal.

Math.hypot(x, y, z) received a fix for a corner case.

WPE now uses the new pasteboard API, aligning it with the GTK port, and enabling features that were previously disabled. Note that the new features work only with WPEPlatform, because libwpe-based backends are limited to access clipboard text items.

A new interface for handling clipboard requests was added, with a generic implementation that only operated within WebKit.

Platform backends may add their own clipboard handling, with the Wayland one being the first one to, using wl_data_device_manager.

This continues the effort to close the feature gap between the “traditional” libwpe-based WPE backends and the new WPEPlatform ones.

Carlos García has published a blog post about the optimizations introduced in the WPE and GTK WebKit ports since the introduction of Skia replacing Cairo for 2D rendering. Plus, there are some hints about what is coming next.