Set the HTTP Response Header

Last Updated: Apr 03, 2018


You can set an HTTP Response Header. Eight HTTP response header parameters are available for customization. The parameters are as follows:

Parameter Description
Content-Type Specifies a content type for the response returned to a client program.
Cache-Control Specifies a cache mechanism that is typically following the request/response process of a client program.
Content-Disposition Specifies a default filename for activating the file download setting when a response is returned to a client program.
Content-Language Specifies a language in which a response is returned to a client program.
Expires Specifies expiration time for the response returned to a client program.
Access-Control-Allow-Origin Specifies an origin that is allowed to send cross-domain requests.
Access-Control-Allow-Methods Specifies the allowed cross-domain request method.
Access-Control-Max-Age Specifies the cache duration of the returned result for a pre-fetch request initiated by a client program for a particular resource.


  • The HTTP response header setting will affect responses to client programs (for example, browser) for all resources under the CDN domain, but will not affect the behavior of the cache server.

  • Only the preceding HTTP header parameters are supported currently. If additional requirements for HTTP header settings are required, please submit a ticket to Alibaba Cloud technical support.

  • The Access-Control-Allow-Origin parameter can be set to * (indicating all domains) or to a complete domain name such as Wildcard domain setting is not supported currently.


  1. Log on to the CDN console

  2. On the left-side navigation pane, click Domain Names.

  3. Select a domain to enter the management page.

  4. On the left navigation bar, click Set HTTP Header.

  5. Click Add HTTP Header.


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