[HTTPS-Everywhere] https-everywhere bug with channels not attached to a window

[Loic J. Duros]

I've got my code working with the https-everywhere-uri-rewrite 
notifications in many instances. However, in some instances I get an 
error. I thought I'd mention it here in case someone knows about this. 
It seems that the final request is never reaching a 200 status, looking 
at the logs:

Got onChannelRedirect.
exploded getting DOMWin for 
https://www.fsf.org/graphics/widget/global/widget.js
exploded getting DOMWin for 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
No applicable list rewriting 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
Potentially applicable rules for static.fsf.org:
   Free Software Foundation
Redirection limit is 19
Notifying observers of rewrite from 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js to 
https://static.fsf.org/fsforg/graphics/widget/global/widget.js
Scheduling channel replacement for 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
Got http-on-modify-request: 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
exploded getting DOMWin for 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
No applicable list rewriting 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
Potentially applicable rules for static.fsf.org:
   Free Software Foundation
Redirection limit is 19
Notifying observers of rewrite from 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js to 
https://static.fsf.org/fsforg/graphics/widget/global/widget.js
Scheduling channel replacement for 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
Ran channel replacement for 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
Ran channel replacement for 
http://static.fsf.org/fsforg/graphics/widget/global/widget.js
TypeError: sink.asyncOnChannelRedirect is not a function
info: librejs: req.readyState is 4 
https://www.fsf.org/graphics/widget/global/widget.js
info: librejs: req.status is 0 
https://www.fsf.org/graphics/widget/global/widget.js

All my extension is doing is creating a new xhr request with the updated 
url (the https one), but as you can see the req.status is 0, and nothing 
happens until the timeout (15 seconds) is triggered.

Thanks,