[Fixed]-FastCGI application behind NGINX is unable to detect that HTTPS secure connection is used


Make sure nginx is sending fastcgi_param HTTPS on for connections on 443.


Thanks to Yuji for the answer. I’ve updated my server block to conditionally inject HTTPS on or HTTPS off, depending on $server_port:


server {
    listen       80;
    listen       443 default ssl;

    if ($server_port = 443) { set $https on; }
    if ($server_port = 80) { set $https off; }

    ssl_certificate   /home/webapp/ssl.crt
    ssl_certificate_key /home/webapp/ssl.key

    server_name  myapp.com;
    access_log /home/webapp/access.log
    error_log  /home/webapp/error.log

    root   /home/mywebapp;

    location / {
           # host and port to fastcgi server                      
       fastcgi_param PATH_INFO $fastcgi_script_name;
       fastcgi_param REQUEST_METHOD $request_method;
       fastcgi_param QUERY_STRING $query_string;
       fastcgi_param SERVER_NAME $server_name;
       fastcgi_param SERVER_PORT $server_port;
       fastcgi_param SERVER_PROTOCOL $server_protocol;
       fastcgi_param CONTENT_TYPE $content_type;
       fastcgi_param CONTENT_LENGTH $content_length;
       fastcgi_pass_header Authorization;
       fastcgi_intercept_errors off;

       fastcgi_param HTTPS $https;


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