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Chrome for Developers
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  • New in Chrome
  • General best practices
  • Page lacks the HTML doctype, thus triggering quirks mode
  • Browser errors were logged to the console
  • Displays images with incorrect aspect ratio
  • Charset declaration is missing or occurs too late in the HTML
  • Make your page fast
  • Does not use HTTP/2 for all of its resources
  • Make your page secure
  • Links to cross-origin destinations are unsafe
  • Includes front-end JavaScript libraries with known security vulnerabilities
  • Ensure CSP is effective against XSS attacks