1016313 - No "error" event on Worker if HTTP 404 response contains no data

Status: RESOLVED DUPLICATE of bug 1036484

(Core :: DOM: Workers, defect)

Description

[Peter von der Ahé]

Attachment: index.html

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36

Steps to reproduce:

When creating a Worker that points to a missing file and the HTTP server responds 404 without an error message, the Worker receives no "error" event.

For example:

new Worker("no_such_file").onerror = function(e) {
   console.log("error event received");
};

I can reproduce this with an Apache HTTP server by adding the following to .htaccess:

ErrorDocument 404 URL

Where URL starts with a forward slash (/) and resolves to an empty file.

I've also attached index.html which demonstrates the issue when served from a HTTP server which replies 404 with an empty response.

I'm observing this issue on Mac OS X 10.9.3.


Actual results:

No "error" event is fired (console doesn't contain the message "error event received").


Expected results:

An "error" event should have fired (console should contain the message "error event received").