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XMLHttpRequestEventTarget

files/en-us/web/api/xmlhttprequesteventtarget/index.md

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{{APIRef("XMLHttpRequest API")}} {{AvailableInWorkers("window_and_worker_except_service")}}

XMLHttpRequestEventTarget is the interface that describes the event handlers shared on {{domxref("XMLHttpRequest")}} and {{domxref("XMLHttpRequestUpload")}}.

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

Events

The following events are made available to {{domxref("XMLHttpRequest")}} and {{domxref("XMLHttpRequestUpload")}}:

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

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

  • {{domxref("XMLHttpRequest")}}
  • {{domxref("XMLHttpRequestUpload")}}