default

        location / {
                try_files $uri $uri/ =404;
                error_page 404 = @boom;
        }

        location /blammo {
          add_header Content-Type text/plain;
          return 200 "Hi there";
        }
        location @boom {
          #set_escape_uri $orig_uri $scheme://$http_host$request_uri$is_arg$args;
          set $orig_uri $scheme://$http_host$request_uri; #$is_args$args;
          return 302 $scheme://$http_host/blammo?return_to=$orig_uri;
        }