Feature Overview

HTTP response headers, a part of HTTP response messages, carry specific response parameters to clients. You can configure custom HTTP response headers in the CDN console. When your user requests resources from an acceleration domain name, CDN carries the configured custom headers in its response messages to implement specific features.

Common scenarios:

• Telling clients the type of a file returned by CDN. For example, you can add the Content-Type: text/html response header to inform clients that the format of the file returned by CDN is HTML.

• Implement cross-origin resource sharing (CORS). For more information, see CORS settings. Before a user requests resources from a domain name added to CDN, you can configure a response header in the response messages returned by CDN to implement CORS.

Procedure

Log in to the CDN console.
Go to Domain Management -> Domain List page.
On the Domain List page, find the target domain name, and click Edit in the Actions column.
Click Cache .
Click the HTTP Response Headers tab.
Click Add .Enter an HTTP response header parameter in the Parameter field. The parameter name can only contain uppercase letters, lowercase letters, digits, underscores (_), and hyphens (-). Enter a value in the Value field. Chinese characters are not supported. If you leave this field empty, the corresponding response header is deleted.
Click Confirm .

Content Delivery Network

HTTP response header