TrustedTypePolicy: createHTML() method

Available in workers

The createHTML() method of the TrustedTypePolicy interface creates a TrustedHTML object using a policy created by createPolicy().

Syntax

createHTML(input)
createHTML(input, args)

Parameters

• input
  • : A string containing the string to be sanitized by the policy.
• args Optional
  • : Additional arguments to be passed to the function represented by TrustedTypePolicy.

Return value

A TrustedHTML object.

Exceptions

• TypeError
  • : Thrown if TrustedTypePolicy does not contain a function to run on the input.

Examples

In the below example a string containing a potentially dangerous script is used as the input for createHTML(). Dangerous code inserted by a user could then be sanitized before insertion into any injection sink.

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

Specifications

Browser compatibility