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The XMLHttpRequestEventTarget.onabort is the function called when an XMLHttpRequest transaction is aborted, such as when the XMLHttpRequest.abort() function is called.


XMLHttpRequest.onabort = callback;


  • callback is the function to be executed when the transaction is aborted.


var xmlhttp = new XMLHttpRequest(),
  method = 'GET',
  url = 'https://developer.mozilla.org/';

xmlhttp.open(method, url, true);
xmlhttp.onabort = function () {
  console.log('** The request was aborted');
xmlhttp.abort(); // This will invoke our onabort handler above


Specification Status Comment
XMLHttpRequest Living Standard WHATWG living standard

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support ? ? ? ? ? ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support ? ? ? ? ? ? ?

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Contributors to this page: ExE-Boss, erikadoyle, blainesch, teoli, rolfedh, Sheppy
Last updated by: ExE-Boss,