Request: integrity property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2017.

Note: This feature is available in Web Workers.

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

Value

The value that was passed as the options.integrity argument when constructing the Request.

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

Examples

In the following snippet, we create a new request using the Request() constructor (for an image file in the same directory as the script), then reads the request's integrity. Because the request was created without a specific integrity, the property returns an empty string.

js
const myRequest = new Request("flowers.jpg");
console.log(myRequest.integrity); // ""

In the example below, the request was created with a specific integrity value, so the property returns that value. Note that there's no validation of the integrity value; the property returns exactly what was passed in.

js
const myRequest = new Request("flowers.jpg", {
  integrity: "sha256-abc123",
});
console.log(myRequest.integrity); // "sha256-abc123"

Specifications

Specification
Fetch
# ref-for-dom-request-integrity②

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
integrity

Legend

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Full support
Full support
No support
No support

See also