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The Element interface's onfullscreenerror property is an event handler for the fullscreenerror event which is sent to the element when an error occurs while attempting to transition into or out of full-screen mode.


targetElement.onfullscreenerror = fullscreenErrorHandler;


An error handler for the fullscreenerror event.


This example attempts to switch into full-screen mode from outside a handler for a user-initiated event (such as a click or keypress event). SInce full-screen mode changes are only permitted in response to a user input, this causes an error to occur, which triggers the delivery of the fullscreenerror event to the error handler,

let elem = document.querySelector("video")}}

elem.onfullscreenerror = function ( event ) {
  displayWarning("Unable to switch into full-screen mode.");




Specification Status Comment
Fullscreen API
The definition of 'onfullscreenerror' in that specification.
Living Standard Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 57Edge ? Firefox Full support 64IE ? Opera ? Safari ? WebView Android Full support 57Chrome Android Full support 57Edge Mobile ? Firefox Android Full support 64Opera Android ? Safari iOS ? Samsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also


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