nginx

This is quite common nowadays to have some TLS terminatin reverse proxy in front of your REST API. Nginx is being used frequently for this purpose.

The problem I faced and spent some time trying to resolve is that API backing Nginx responds in JSON, but if something is wrong with the request itself or Nginx can’t reach the backend Nginx returns error page in ‘text/html’.

Sometimes it’s needed to assign some proxy header depending on some variable value. But proxy_set_header does not work with “if” cause (at least didn’t work with nginx 1.4.1). So the following construction won’t work: