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/Web APIs

FragmentDirective

Baseline 2025

Newly available

Since ⁨March 2025⁩, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The FragmentDirective interface is an object exposed to allow code to check whether or not a browser supports text fragments.

It is accessed via the Document.fragmentDirective property.

Instance properties

None.

Instance methods

None.

Examples

Checking if text fragments are supported

The code below logs whether or not text fragments are supported in your browser by checking that Document.fragmentDirective is defined. Note that the object is empty, and at present is mainly intended for feature detection. In the future, it might include other information.

if (document.fragmentDirective) {
  log("Your browser supports text fragments.");
} else {
  log("Text fragments are not supported in your browser.");
}

Specifications

Specification
URL Fragment Text Directives> # fragmentdirective>

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
`FragmentDirective`	81	83	131	68	18.4	81	131	58	18.4	13.0	81	18.4