Re: Retrieving a webpages shows a blank screen when a 4xx HTTP status is returned. Not helpfull.

R.Wieser <[email protected]> wrote:
> Update:
> I copied the "prefs.js" from my working machine to my spare one, and the 
> "HTTP Status code" add-on stopped working (the background script wasn't 
> loaded anymore).    The plugin again worked when I restored the origional 
> "prefs.js".
> 
> IOW, /some/ (about:config) setting stops the background script from being 
> loaded/executed.  Any idea ?
>
If you're using an unsigned xpi you need
xpinstall.signatures.required false

I looked at the APIs - I think it should work back to 48 - but you know
it works with 52 anyway. Neat little addon!

I don't remember what remote debugging was like back then, Now I do
tools, web developer, remote debugging, this firefox (top left), select
the addon to inspect, then console or whatever. That should show any js
error in the backgrond script. I think.
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