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XMLHttpRequestEventTarget

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

Note: This feature is available in Web Workers, except for Service Workers.

XMLHttpRequestEventTarget is the interface that describes the event handlers shared on XMLHttpRequest and XMLHttpRequestUpload.

You don't use XMLHttpRequestEventTarget directly; instead you interact with the sub classes.

The following events are made available to XMLHttpRequest and XMLHttpRequestUpload:

abort: Fired when a request has been aborted, for example because the program called XMLHttpRequest.abort(). Also available via the onabort event handler property.
error: Fired when the request encountered an error. Also available via the onerror event handler property.
load: Fired when a request transaction completes successfully. Also available via the onload event handler property.
loadend: Fired when a request has completed, whether successfully (after load) or unsuccessfully (after abort or error). Also available via the onloadend event handler property.
loadstart: Fired when a request has started to load data. Also available via the onloadstart event handler property.
progress: Fired periodically when a request receives more data. Also available via the onprogress event handler property.
timeout: Fired when progress is terminated due to preset time expiring. Also available via the ontimeout event handler property.

Specification
XMLHttpRequest> # xmlhttprequesteventtarget>

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`XMLHttpRequestEventTarget`	1	12	1	≤12.1	1	18	4	≤12.1	1	1.0	4.4	1