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The Sec-Fetch-Mode fetch metadata header indicates the request's mode.
| Header type | Fetch Metadata Request Header |
|---|---|
| Forbidden header name | yes, since it has prefix Sec- |
| CORS-safelisted request header |
Syntax
Sec-Fetch-Mode: cors
Sec-Fetch-Mode: navigate
Sec-Fetch-Mode: nested-navigate
Sec-Fetch-Mode: no-cors
Sec-Fetch-Mode: same-origin
Sec-Fetch-Mode: websocket
Values
corsnavigatenested-navigateno-corssame-originwebsocket
Examples
TODO
Specifications
| Specification | Status | Comment |
|---|---|---|
| Fetch Metadata Request Headers The definition of 'Sec-Fetch-Mode' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
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