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What does the CORS mechanism control?

  1. A Whether a browser allows a page from one origin to read a response from another
  2. B The maximum request rate
  3. C Which HTTP methods a server supports
  4. D Whether cookies are encrypted
Answer

Whether a browser allows a page from one origin to read a response from another

CORS is enforced by the browser and configured by response headers on the server. A CORS error means the response was blocked from being read, not that the request was never sent.

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