Event.isTrusted

The isTrusted read-only property of the Event interface is a Boolean that is true when the event was generated by a user action, and false when the event was created or modified by a script or dispatched via EventTarget.dispatchEvent().

Syntax

var eventIsTrusted = event.isTrusted;

Value

Boolean

Example

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

Specification

Specification Status Comment
DOM
The definition of 'Event.isTrusted' in that specification.
Living Standard
Document Object Model (DOM) Level 3 Events Specification
The definition of 'Trusted events' in that specification.
Obsolete Adds requirements regarding trusted and untrusted events, though it does not itself define the isTrusted property.

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
isTrustedChrome Full support 46
Notes
Full support 46
Notes
Notes Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.
Edge Full support 12Firefox Full support YesIE No support No
Notes
No support No
Notes
Notes In Internet Explorer, all events are trusted except those that are created with the createEvent() method.
Opera Full support 33
Notes
Full support 33
Notes
Notes Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.
Safari Full support 10WebView Android Full support 46
Notes
Full support 46
Notes
Notes Starting with version 53, untrusted events do not invoke the default action.
Chrome Android Full support 46
Notes
Full support 46
Notes
Notes Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.
Firefox Android Full support YesOpera Android Full support 33
Notes
Full support 33
Notes
Notes Starting with Chrome 53 and Opera 40, untrusted events do not invoke the default action.
Safari iOS Full support 10Samsung Internet Android Full support 5.0
Notes
Full support 5.0
Notes
Notes Starting with Samsung Internet 6.0 and Opera 40, untrusted events do not invoke the default action.

Legend

Full support
Full support
No support
No support
See implementation notes.
See implementation notes.