What's new in the WebKitGTK+ 2.22.2 release? ============================================ - Several fixes for video playback with media source extensions (MSE). This allows using WebM support for YouTube, which no longer works through regular video source. Note that MSE is still disabled by default and webkit_settings_set_enable_mediasource() has to be used to enable the feature. - Fix the build when only Wayland support is enabled and X11 headers are not available.