[nginx] Map: the "volatile" parameter.

[Ruslan Ermilov]

On Fri, Dec 09, 2016 at 10:41:41AM +0800, 洪志道 wrote:
> Hi!
> 
> It's still a problem when the variable generated by map and including
> itself. For example:
> 
> map $host $abc {
>     default  $abc;
> }
> 
> server {
>     listen  80;
> 
>     location / {
>         return 200 $abc;
>     }
> }

Unlimited recursion is now detected and handled:
http://hg.nginx.org/nginx/rev/8cd97c14b0e2

Enjoy!