SourceBuffer: abort event

Available in workers

The abort event of the SourceBuffer interface is fired when the buffer appending is aborted, because the abort() or remove() method is called while the appendBuffer() algorithm is still running. The updating property transitions from true to false. This event is fired before the updateend event.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("abort", (event) => { })

onabort = (event) => { }

Event type

A generic Event.

Examples

Aborting an append operation

This example demonstrates how to abort an append operation and handle the abort event.

const sourceBuffer = source.addSourceBuffer(mimeCodec);
sourceBuffer.addEventListener("abort", () => {
  downloadStatus.textContent = "Canceled";
});
sourceBuffer.addEventListener("update", () => {
  downloadStatus.textContent = "Done";
});
sourceBuffer.addEventListener("updateend", () => {
  source.endOfStream();
});
cancelButton.addEventListener("click", () => {
  if (sourceBuffer.updating) {
    sourceBuffer.abort();
  }
});
downloadStatus.textContent = "Downloading...";
fetch(assetURL)
  .then((response) => response.arrayBuffer())
  .then((data) => {
    downloadStatus.textContent = "Decoding...";
    sourceBuffer.appendBuffer(data);
  });

Specifications

Browser compatibility

See also

• abort()