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Allow header

files/en-us/web/http/reference/headers/allow/index.md

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The HTTP Allow {{Glossary("response header")}} lists the set of request methods supported by a resource. This header must be sent if the server responds with a {{HTTPStatus("405", "405 Method Not Allowed")}} status code to indicate which request methods can be used instead. An empty Allow value indicates that the resource allows no request methods, which might occur temporarily for a given resource.

<table class="properties"> <tbody> <tr> <th scope="row">Header type</th> <td>{{Glossary("Response header")}}</td> </tr> </tbody> </table>

Syntax

http
Allow: <http-methods>

Directives

  • <http-methods>
    • : A comma-separated list of allowed request methods supported by a resource.

Examples

http
Allow: GET, POST, HEAD

Specifications

{{Specifications}}

See also

  • {{HTTPStatus("405", "405 Method Not Allowed")}} status code
  • {{HTTPHeader("Server")}}
  • {{HTTPMethod("OPTIONS")}}