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TrustedHTML: toString() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Note: This feature is available in Web Workers.

The toString() method of the TrustedHTML interface returns a string which may safely inserted into an injection sink.

Syntax

toString()

Parameters

None.

Return value

A string containing the sanitized HTML.

Examples

The constant escaped is an object created via the Trusted Types policy escapeHTMLPolicy. The toString() method returns a string to safely insert into a document.

const escapeHTMLPolicy = trustedTypes.createPolicy("myEscapePolicy", {
  createHTML: (string) => string.replace(/</g, "&lt;"),
});

const escaped = escapeHTMLPolicy.createHTML("<img src=x onerror=alert(1)>");
console.log(escaped.toString());

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
toString 83 83 No 69 26 83 No 59 26 13.0 83 26

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https://developer.mozilla.org/en-US/docs/Web/API/TrustedHTML/toString