Return JSON for 404 error instead of html

[Valentin V. Bartenev]

On Tuesday 13 May 2014 15:30:56 B.R. wrote:
> > Instead of using 3rd-party echo module, you can utilize the return
> > directive
> > 
> > for the same purpose:
> >   return 200 '{"status": "Not Found"}';
> > 
> > Reference: http://nginx.org/r/return
> > 
> >   wbr, Valentin V. Bartenev
> 
> ​I would have intuitively written code 404 rather than 200 on this one
> since the aim is to send a 404 error answer.​
> Am I wrong? Would that loop?
>

I wrote an equivalent of "echo".  The logic is that in this handler we provide 
the page for 404 which actually exists.

   wbr, Valentin V. Bartenev