<a>event listeners</a>

registered whose <b>type</b> is one of

{{XMLHttpRequest/readystatechange}},

{{XMLHttpRequest/progress}},

{{XMLHttpRequest/abort}},

{{XMLHttpRequest/error}},

{{XMLHttpRequest/load}},

{{XMLHttpRequest/timeout!!event}}, and

{{XMLHttpRequest/loadend}}.

{{XMLHttpRequestEventTarget/progress}},

{{XMLHttpRequestEventTarget/abort}},

{{XMLHttpRequestEventTarget/error}},

{{XMLHttpRequestEventTarget/load}},

{{XMLHttpRequestEventTarget/timeout!!event}}, and

{{XMLHttpRequestEventTarget/loadend}}.

<!-- No need to mention upload event listeners as they happen during /opened/. -->

<p>If an {{XMLHttpRequest}} object is garbage collected while its connection is still open, the user

<tbody>

<tr>

<td><dfn id=handler-xhr-onloadstart attribute for=XMLHttpRequestEventTarget><code>onloadstart</code></dfn>

<td>{{XMLHttpRequest/loadstart}}

<td>{{XMLHttpRequestEventTarget/loadstart}}

<tr>

<td><dfn id=handler-xhr-onprogress attribute for=XMLHttpRequestEventTarget><code>onprogress</code></dfn>

<td>{{XMLHttpRequest/progress}}

<td>{{XMLHttpRequestEventTarget/progress}}

<tr>

<td><dfn id=handler-xhr-onabort attribute for=XMLHttpRequestEventTarget><code>onabort</code></dfn>

<td>{{XMLHttpRequest/abort}}

<td>{{XMLHttpRequestEventTarget/abort}}

<tr>

<td><dfn id=handler-xhr-onerror attribute for=XMLHttpRequestEventTarget><code>onerror</code></dfn>

<td>{{XMLHttpRequest/error}}

<td>{{XMLHttpRequestEventTarget/error}}

<tr>

<td><dfn id=handler-xhr-onload attribute for=XMLHttpRequestEventTarget><code>onload</code></dfn>

<td>{{XMLHttpRequest/load}}

<td>{{XMLHttpRequestEventTarget/load}}

<tr>

<td><dfn id=handler-xhr-ontimeout attribute for=XMLHttpRequestEventTarget><code>ontimeout</code></dfn>

<td>{{XMLHttpRequest/timeout!!event}}

<td>{{XMLHttpRequestEventTarget/timeout!!event}}

<tr>

<td><dfn id=handler-xhr-onloadend attribute for=XMLHttpRequestEventTarget><code>onloadend</code></dfn>

<td>{{XMLHttpRequest/loadend}}

<td>{{XMLHttpRequestEventTarget/loadend}}

</table>

<p>The following is the

<li><p>Otherwise, if <var>xhr</var>'s <a for=XMLHttpRequest>response</a> is a

<a for=/>network error</a>, then run the <a>request error steps</a> for <var>xhr</var>,

{{XMLHttpRequest/error}}, and "{{NetworkError!!exception}}" {{DOMException}}.

{{XMLHttpRequestEventTarget/error}}, and "{{NetworkError!!exception}}" {{DOMException}}.

</ol>

<p>The <dfn>request error steps</dfn> for an {{XMLHttpRequest}} object <var>xhr</var>,

<td>The {{XMLHttpRequest/readyState}} attribute changes

value, except when it changes to <a const for=XMLHttpRequest>UNSENT</a>.

<tr>

<td><dfn id=event-xhr-loadstart event for=XMLHttpRequest><code>loadstart</code></dfn>

<td><dfn id=event-xhr-loadstart event for=XMLHttpRequestEventTarget><code>loadstart</code></dfn>

<td>{{ProgressEvent}}

<td>The fetch initiates.

<tr>

<td><dfn id=event-xhr-progress event for=XMLHttpRequest><code>progress</code></dfn>

<td><dfn id=event-xhr-progress event for=XMLHttpRequestEventTarget><code>progress</code></dfn>

<td>{{ProgressEvent}}

<td>Transmitting data.

<tr>

<td><dfn id=event-xhr-abort event for=XMLHttpRequest><code>abort</code></dfn>

<td><dfn id=event-xhr-abort event for=XMLHttpRequestEventTarget><code>abort</code></dfn>

<td>{{ProgressEvent}}

<td>When the fetch has been aborted. For instance, by invoking the

{{XMLHttpRequest/abort()}} method.

<tr>

<td><dfn id=event-xhr-error event for=XMLHttpRequest><code>error</code></dfn>

<td><dfn id=event-xhr-error event for=XMLHttpRequestEventTarget><code>error</code></dfn>

<td>{{ProgressEvent}}

<td>The fetch failed.

<tr>

<td><dfn id=event-xhr-load event for=XMLHttpRequest><code>load</code></dfn>

<td><dfn id=event-xhr-load event for=XMLHttpRequestEventTarget><code>load</code></dfn>

<td>{{ProgressEvent}}

<td>The fetch succeeded.

<tr>

<td><dfn id=event-xhr-timeout event for=XMLHttpRequest><code>timeout</code></dfn>

<td><dfn id=event-xhr-timeout event for=XMLHttpRequestEventTarget><code>timeout</code></dfn>

<td>{{ProgressEvent}}

<td>The author specified timeout has passed before the fetch completed.

<tr>

<td><dfn id=event-xhr-loadend event for=XMLHttpRequest><code>loadend</code></dfn>

<td><dfn id=event-xhr-loadend event for=XMLHttpRequestEventTarget><code>loadend</code></dfn>

<td>{{ProgressEvent}}

<td>The fetch completed (success or failure).

</table>