685320 - Components.classes["@mozilla.org/threads/workerfactory;1"] is undefined

Status: RESOLVED WONTFIX

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

Description

[Michael Kraft [:morac]]

According to the documentation, the nsIWorkerFactory component should exist and be scriptable from Firefox 4 through 9.  See https://developer.mozilla.org/en/XPCOM_Interface_Reference/nsIWorkerFactory and https://developer.mozilla.org/en/Firefox_8_for_developers

In the Aurora (Firefox 8) and later branches, Components.classes["@mozilla.org/threads/workerfactory;1"] is undefined so the following code throws an error:

var workerFactory = Components.classes["@mozilla.org/threads/workerfactory;1"].createInstance(Components.interfaces.nsIWorkerFactory);

It works in Firefox 4 through Beta (7).

So basically ChromeWorkers are not available for use in JavaScript Modules in Firefox 8 and up.

Comment 1

[Ben Turner (not reading bugmail, use the needinfo flag!)]

We've already got a documentation request open to fix the docs, for now on you just do 'new ChromeWorker("myUrl.js");' from a JSM.

Comment 2

[Michael Kraft [:morac]]

(In reply to ben turner [:bent] from comment #1)
> We've already got a documentation request open to fix the docs, for now on
> you just do 'new ChromeWorker("myUrl.js");' from a JSM.

I actually tried that and Firefox crashed so I assume that wasn't working.  It's possible I did something bad in the Worker, but I didn't crash under Firefox 7.  

https://crash-stats.mozilla.com/report/index/bp-3cab65b3-c592-4da2-b623-a89df2110907

Comment 3

[Ben Turner (not reading bugmail, use the needinfo flag!)]

(In reply to Michael Kraft [:morac] from comment #2)
> https://crash-stats.mozilla.com/report/index/bp-3cab65b3-c592-4da2-b623-
> a89df2110907

Hm, that's a bug, indeed. Let's file a new one for that?

Comment 4

[Michael Kraft [:morac]]

I filed Bug 685916 for the crash.

Comment 5

[Ben Turner (not reading bugmail, use the needinfo flag!)]

Thanks! I'm on it.