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Sec-Fetch-Mode Header

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About

The HTTP Sec-Fetch-Mode fetch metadata request header indicates the mode of the request1 to a server; it is a Structured Header whose value is a token with possible values cors, navigate, no-cors, same-origin, and websocket2.

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References

  1. MDN. “Sec-Fetch-Mode header”. Available at: https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Sec-Fetch-Mode. (Accessed: [2025-05-20 Tue 05:39]). ↩︎

  2. MDN. “Fetch metadata request headers”. Available at: https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers#fetch_metadata_request_headers. (Accessed: [2025-05-20 Tue 05:39]). ↩︎

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