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TrustedTypePolicyFactory: getPropertyType() method

The getPropertyType() method of the TrustedTypePolicyFactory interface allows web developers to check if a Trusted Type is required for an element's property.

Syntax

js

getPropertyType(tagName, property)
getPropertyType(tagName, property, elementNS)

Parameters

tagName

A string containing the name of an HTML tag.

property

A string containing a property, for example "innerHTML".

elementNS Optional

A string containing a namespace, if empty defaults to the HTML namespace.

Return value

A string with one of:

  • "TrustedHTML"
  • "TrustedScript"
  • "TrustedScriptURL"

Or, null.

Examples

In this example, passing the <div> element and innerHTML property to getPropertyType returns "TrustedHTML".

js

console.log(trustedTypes.getPropertyType("div", "innerHTML")); // "TrustedHTML"

Specifications

Specification
Trusted Types
# dom-trustedtypepolicyfactory-getpropertytype

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
getPropertyType 83 83 No No 69 No 83 83 No 59 No 13.0

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https://developer.mozilla.org/en-US/docs/Web/API/TrustedTypePolicyFactory/getPropertyType