The XMLHttpRequestEventTarget.onerror
is the function called when an XMLHttpRequest
transaction fails due to an error.
Syntax
XMLHttpRequest.onerror = callback;
Values
callback
is the function to be executed when the request fails.
Example
var xmlhttp = new XMLHttpRequest(), method = 'GET', url = 'https://developer.mozilla.org/'; xmlhttp.open(method, url, true); xmlhttp.onerror = function () { console.log("** An error occurred during the transaction"); }; xmlhttp.send();
Specifications
Specification | Status | Comment |
---|---|---|
XMLHttpRequest | Living Standard | WHATWG living standard |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
onerror | Chrome Full support Yes | Edge Full support ≤18 | Firefox Full support Yes | IE Full support 10 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support