Request.arrayBuffer()

The arrayBuffer() method of the Request interface reads the request body and returns it as a promise that resolves with an ArrayBuffer.

Exceptions: TypeError Thrown for one of the following reasons: The request body is disturbed or locked. There was an error decoding the body content (for example, because the Content-Encoding header is incorrect). RangeError Thrown if there is a problem creating the associated ArrayBuffer (for example, if the data size is too large).