What's new in the WebKitGTK+ 2.16.1 release?
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  - Fix no-third-party cookies policy in case of redirections.
  - Keep URL fragments after server redirections.
  - Honor GTK+ font settings.
  - Ensure depth and stencil renderbuffers are created on GLESv2.
  - Prevent new navigations from onbeforeunload handler and document unload.
  - Disallow beforeunload alerts from web pages users have never interacted with.
  - Fix several crashes and rendering issues.