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Attributes.crossorigin

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The crossorigin attribute, valid on the <audio>, <img>, <link>, <script>, and <video> elements, provides support for CORS, defining how the element handles crossorigin requests, thereby enabling the configuration of the CORS requests for the element's fetched data. Depending on the element, the attribute can be a CORS settings attribute.

The crossorigin content attribute on media elements is a CORS settings attribute.

These attributes are enumerated, and have the following possible values:

Keyword Description
anonymous CORS requests for this element will have the credentials flag set to 'same-origin'.
use-credentials CORS requests for this element will have the credentials flag set to 'include'.
"" Setting the attribute name to an empty value, like crossorigin or crossorigin="", is the same as anonymous.

By default (that is, when the attribute is not specified), CORS is not used at all. The "anonymous" keyword means that there will be no exchange of user credentials via cookies, client-side SSL certificates or HTTP authentication as described in the Terminology section of the CORS specification, unless it is in the same origin.

An invalid keyword and an empty string will be handled as the anonymous keyword.

Prior to Firefox 83 the crossorigin attribute was not supported for rel="icon" there is also an open issue for Chrome.

Example: crossorigin with the script element

You can use the following <script> element to tell a browser to execute the https://example.com/example-framework.js script without sending user-credentials.

<script src="https://example.com/example-framework.js" crossorigin="anonymous"></script>

Example: Webmanifest with credentials

The use-credentials value must be used when fetching a manifest that requires credentials, even if the file is from the same origin.

<link rel="manifest" href="/app.webmanifest" crossorigin="use-credentials">

Specifications

Browser compatibilityUpdate compatibility data on GitHubUpdate compatibility data on GitHubUpdate compatibility data on GitHub

<script crossorigin>

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
crossorigin 30 ≤18 13 No 12 Yes
Yes
The crossorigin attribute was implemented in WebKit in WebKit bug 81438.
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
crossorigin Yes Yes 14 ? ? Yes

<video crossorigin>

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
crossorigin ? ≤18 12 ? ? ?
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
crossorigin ? ? 14 ? ? ?
Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
crossorigin 25 79 18 No 15 ?
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
crossorigin 37 Yes 18 ? ? Yes

Legend

Full support
No support
Compatibility unknown
Compatibility unknown

See also

© 2005–2020 Mozilla and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin