What's new in the WebKitGTK 2.27.90 release?
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  - Add support for same-site cookies.
  - Add flatpak sandbox support.
  - Enable WebAudio and WebGL by default in WebKitSettings.
  - Add a setting to disallow top level navigation to a data URI.
  - Add support for the -webkit-font-smoothing CSS property.
  - Always use a light theme for rendering form controls.
  - Stop making the Web Inspector windows transient.
  - Ensure mouse cursor is hidden during fullscreen video playback.
  - Add support for inspecting service workers to the remote inspector.
  - Fix several crashes and rendering issues.