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

None.

A string containing the sanitized URL

The constant sanitized is an object created via a Trusted Types policy. The toString() method returns a string to safely use to load a third party script.

const sanitized = scriptPolicy.createScriptURL(
  "https://example.com/my-script.js",
);
console.log(sanitized.toString());