1336766 - FileReader onerror dispatches a ProgressEvent - FileReader::FreeDataAndDispatchError ignores mError

Status: RESOLVED INVALID

(Core :: DOM: Core & HTML, defect)

Description

[Markus Stange [:mstange]]

I'm not sure if this is intentional. It seems rather strange to me.
Code example:

const reader = new FileReader();
reader.onerror = errorEvent => {
  // errorEvent is not helpful at all.
  // Need to check reader.error.name instead.
};
reader.readAsArrayBuffer(someBlob);

Comment 1

[Andrea Marchesini [:baku]]

https://w3c.github.io/FileAPI/#dfn-error-event

This is correct. You should use FileReader.error in order to have a DOMError object.

Comment 2

[Markus Stange [:mstange]]

ok, thanks