WebKit Igalia Periodical #62

A new API to obtain page icons (a.k.a. “favicons”) has been added to the GTK port. The new functionality reuses the recently added WebKitImage class and provides access to multiple page icons at once through the added WebKitImageList type, allowing applications to better choose an icon that suits their needs. Changes to the WebKitWebView.page-icons property are guaranteed to be done once per page load, when all icon images are available to be used. This new API has been also enabled for the WPE port, and the plan is to deprecate the old page favicon functionality going forward.

Added iOS support for dialog light dismiss, part of the experimental closedby attribute implementation.

canPlayType() is now more conservative regarding MPEG-4 Audio object types. This primarily affects AAC extensions: In the past, as long as there was an AAC decoder installed, WebKit was accepting any codec string that started with mp4a. Now it only accepts codec strings that correspond to object types that have widespread support. This can prevent accidental playback of newer formats like xHE-AAC, which many decoders don't yet support — for example, as of writing, FFmpeg support for xHE-AAC is only very recent and still incomplete.

canPlayType() now also reports support for Dolby AC-4 in systems with a decoder capable of handling it.

The GStreamer WebRTC backend now rejects SDP including rtpmap attributes in the disallowed range of 64-95 payload types. Compliance with RFC 7587 was also improved.

The WebKitGTK nightly builds for Epiphany Canary are now handled entirely by the GNOME GitLab infrastructure, many thanks to them! The previous approach was not optimal, producing release builds without debug symbols. With the new builds, it is now easier to get crash stack traces including more information.