Note: Due to a bug in Chrome, setting Cross-Origin-Resource-Policy can break file downloads, preventing visitors using Save as or Save image as on resources with the CORP header. Exercise caution when deciding to use this feature in a production environment.

The HTTP Cross-Origin-Resource-Policy response header conveys a desire that the browser block no-cors cross-origin/cross-site requests to the given resource.

Header type Response header
Forbidden header name no


Cross-Origin-Resource-Policy: same-site | same-origin


The response header below will cause compatible user agents to disallow cross-origin no-cors requests:

Cross-Origin-Resource-Policy: same-origin


Specification Status Comment
Fetch Living Standard Initial definition

Browser compatibility

No compatibility data found. Please contribute data for "http.headers.corb" (depth: 1) to the MDN compatibility data repository.

See also

Document Tags and Contributors

Contributors to this page: lol768, Malvoz
Last updated by: lol768,