The integrity read-only property of the Request interface contains the subresource integrity value of the request.


var myIntegrity = request.integrity;


The subresource integrity value of the request (e.g., sha256-BpfBw7ivV8q2jLiT13fxDYAe2tJllusRSZ273h2nFSE=).

If an integrity has not been specified, the property returns ''.


In the following snippet, we create a new request using the Request.Request() constructor (for an image file in the same directory as the script), then save the request integrity value in a variable:

var myRequest = new Request('flowers.jpg');
var myIntegrity = myRequest.integrity;


Specification Status Comment
The definition of 'integrity' in that specification.
Living Standard Initial definition

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidiOS SafariSamsung Internet
Basic support
Chrome Full support 46Edge Full support YesFirefox Full support YesIE No support NoOpera Full support YesSafari No support NoWebView Android No support NoChrome Android Full support 46Edge Mobile Full support YesFirefox Android No support NoOpera Android Full support YesSafari iOS No support NoSamsung Internet Android Full support 5.0


Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

See also

Document Tags and Contributors

Contributors to this page: fscholz, jpmedley, chrisdavidmills
Last updated by: fscholz,