TrustedTypePolicyFactory.getPropertyType()

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

Syntax

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".

elementNSOptional

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".

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

Specifications

Specification
Trusted Types
# dom-trustedtypepolicyfactory-getpropertytype

Browser compatibility

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