Codebase Browser
chromium
Go to App

chromium/third_party/blink/web_tests/http/tests/inspector-protocol/resources/client-hint-delegate-ch-meta-tag-invalid-origin.html 

<!DOCTYPE html> 
<html>
  <head>
    <meta http-equiv="Delegate-CH" content="Sec-CH-DPR *">
  </head>
  <body>
  </body>
</html>