Caspian 0.2.3

A reliability release. Every crash report Caspian has received traced back to one bug, and it is
fixed; so are the crash on quit, Cloudflare’s “Verify you are human” loop and blocked sign-in
windows.

Fixed

• The crash after a tab had been asleep. Once Caspian had freed the memory of a tab left alone
  for an hour, waking that tab, changing a setting or the theme, right-clicking a tab or muting one
  could close the whole browser. This was the cause of every Caspian crash report since 0.1.6.
• The crash on quit after a container tab had been used, which also lost the last few seconds
  of cookies (a sign-in could be forgotten). Quitting with Ctrl+Q, or restarting for an update,
  now brings back every window, not only the last one closed.
• Cloudflare’s “Verify you are human” loop. Caspian told sites it was a newer Chrome than its
  engine is, and Cloudflare fails a browser whose claims don’t match what it can do. Caspian now
  presents its engine’s own version, the same in every place a site can read it.
• “Sign in with Google” and other sign-in windows being blocked. A click on the icon or text
  inside a button now counts as a click on the button, links that redirect to a sign-in page are
  judged by where they were going, and sign-in windows from the major providers open with any
  click. Middle- and Ctrl-clicks are never mistaken for pop-ups, and a blocked pop-up reopened from
  the indicator keeps its connection to the page that opened it.
• Google’s account bar and app launcher on google.com, broken by the ad blocker reading some
  of its rules wrongly. The blocker now reads rules exactly as uBlock Origin does, and pop-up-only
  rules no longer block a site’s ordinary requests.

Changed

• Background tabs keep running. Sleep (freezing background tabs after 10 minutes) is off by
  default, so mail and chat keep updating and notifying. Tabs you haven’t used for an hour still
  free their memory, but never a tab you’ve typed into, one playing sound, a site allowed to send
  notifications, or a site on the new “Always keep these sites active” list (Settings ›
  Performance).
• Pages sit in a rounded card, inset from the window with soft corners. While a page loads,
  the card’s own edge traces it in your accent colour (coral with the default Mono), each split
  pane its own; the line under the toolbar is gone. Settings › Appearance › Rounded page corners
  turns the card off and brings the line back.
• No more flash between sites. Moving to a different site showed a white, then black, frame
  for a moment while the engine switched renderers. Caspian now keeps the page you were on in
  place until the new one has drawn, as Chrome does.
• Crash reports carry no memory. A report sends the crash’s location (the module and offset)
  and nothing from the computer’s memory; the full crash file stays on your machine.

Under the hood

• Extensions on Windows get their cross-site access exemption again (a name mismatch in the engine
  hook had turned it off).
• Caspian’s engine settings now apply even when an engine flag is already set in the environment.