XMLHttpRequest: loadend event

The loadend event is fired when a request has completed, whether successfully (after load) or unsuccessfully (after abort or error).

Bubbles No
Cancelable No
Interface ProgressEvent
Event handler property onloadend

Examples

Live example

HTML

<div class="controls">
    <input class="xhr success" type="button" name="xhr" value="Click to start XHR (success)" />
    <input class="xhr error" type="button" name="xhr" value="Click to start XHR (error)" />
    <input class="xhr abort" type="button" name="xhr" value="Click to start XHR (abort)" />
</div>

<textarea readonly class="event-log"></textarea>

JS

const xhrButtonSuccess = document.querySelector('.xhr.success');
const xhrButtonError = document.querySelector('.xhr.error');
const xhrButtonAbort = document.querySelector('.xhr.abort');
const log = document.querySelector('.event-log');

function handleEvent(e) {
    log.textContent = log.textContent + `${e.type}: ${e.loaded} bytes transferred\n`;
}

function addListeners(xhr) {
    xhr.addEventListener('loadstart', handleEvent);
    xhr.addEventListener('load', handleEvent);
    xhr.addEventListener('loadend', handleEvent);
    xhr.addEventListener('progress', handleEvent);
    xhr.addEventListener('error', handleEvent);
    xhr.addEventListener('abort', handleEvent);
}

function runXHR(url) {
    log.textContent = '';

    const xhr = new XMLHttpRequest();
    addListeners(xhr);
    xhr.open("GET", url);
    xhr.send();
    return xhr;  
}

xhrButtonSuccess.addEventListener('click', () => {
    runXHR('https://mdn.mozillademos.org/files/16553/DgsZYJNXcAIPwzy.jpg');
});

xhrButtonError.addEventListener('click', () => {
    runXHR('https://somewhere.org/i-dont-exist');
});

xhrButtonAbort.addEventListener('click', () => {
    runXHR('https://mdn.mozillademos.org/files/16553/DgsZYJNXcAIPwzy.jpg').abort();
});

Result

Specifications

Specification Status Comment
XMLHttpRequest Living Standard  

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
loadend eventChrome Full support YesEdge ? Firefox Full support YesIE ? Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also