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I'm surprised Google still uses useragent parsing for browser detection.

• Someone1234 7y ago
  Everyone still uses browser detection. There's no other way to determine a specific rendering engine, feature detection solves a whole different set of problems, it doesn't solve for rendering quirks. In this case the browser is unknown, so they use the most compatible version of the page.
  • michaelt 7y ago
    If by "the most compatible version of the page" you mean they deny access, you have an unusually generous definition of compatibility :)
    • Someone1234 7y ago
      It doesn't deny access. I just tested it, it just gives you a version of YT with fewer features and a dated UI.
• chronogram 7y ago
  While they advocate against doing just that.