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Event: isTrusted property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨September 2016⁩.

Note: This feature is available in Web Workers.

The isTrusted read-only property of the Event interface is a boolean value that is true when the event was generated by the user agent (including via user actions and programmatic methods such as HTMLElement.focus()), and false when the event was dispatched via EventTarget.dispatchEvent(). The only exception is the click event, which initializes the isTrusted property to false in user agents.

Value

A boolean value.

Example

if (e.isTrusted) {
  /* The event is trusted */
} else {
  /* The event is not trusted */
}

Specifications

Specification
DOM> # ref-for-dom-event-istrusted①>

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
`isTrusted`	46 Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.	12	1.5	33 Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.	10	46 Starting with Chrome Android 53 and Opera 40, untrusted events do not invoke the default action.	4	33 Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.	10	5.0 Starting with Samsung Internet 6.0 and Opera 40, untrusted events do not invoke the default action.	46 Starting with version 53, untrusted events do not invoke the default action.	10

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https://developer.mozilla.org/en-US/docs/Web/API/Event/isTrusted