HTML abort DOM Event: Reference and Examples

When someone interacts with a webpage, the browser sends events to the relevant JavaScript code. The abort event happens when a media or resource operation stops before completing.

When abort happens

A media or resource operation stops before completing.

You can listen for it using addEventListener(). That keeps event handling separate from HTML attributes such as onclick and works well with modern code organization.

A small working example

<video id="demo-target" controls preload="metadata" width="320">
    <source src="sample-video.mp4" type="video/mp4">
</video>
<p id="event-status" role="status">Waiting for abort...</p>
<script>
    const eventTarget = document.getElementById("demo-target");
    const eventStatus = document.getElementById("event-status");

    if (eventTarget) {
        eventTarget.addEventListener("abort", (eventDetails) => {
            eventStatus.textContent = "abort event received";
            console.log(eventDetails.type, eventDetails.target);
        });
    }
</script>

Reading the code

The browser listens for abort on the relevant target. When the event occurs, the callback receives eventDetails, updates the status message and logs the event name and target in Developer Tools.

Cancel or replace an active media load; browser delivery depends on what is loading.

To test this example, put a real supported media file at the shown path. Events tied to buffering or download behavior may not fire in the same order on every connection. An unavailable sample file is not proof that your event listener is broken.

Try it in your browser

Open the page, show the Console panel, and follow this test: Cancel or replace an active media load; browser delivery depends on what is loading. Then change one thing in the example and observe whether the event still fires.

Common Beginner Mistakes

• Expecting abort to fire without its required user action or browser condition.
• Cancel or replace an active media load; browser delivery depends on what is loading.
• Adding repeated event listeners without considering cleanup or unwanted side effects.

Key Takeaways

• abort reports a media or resource operation stops before completing.
• addEventListener("abort", ...) listens for the event on the appropriate target.
• Cancel or replace an active media load; browser delivery depends on what is loading.