I have googled this problem and found lots of references, but none of the workarounds or solutions seem to work in my case. I have a docker container with an Nginx acting as an SSL reverse proxy for authentication. I have an Apache container serving a Laravel app. I always get the html but no css or images. In Chrome I get:

Resource interpreted as Stylesheet but transferred with MIME type text/html:

Here is my default.conf in nginx/sites/

upstream app {
server {

listen 443 ssl default_server;
listen [::]:443 ssl default_server ipv6only=on;
server_name rocket.example.com localhost;
root /var/www/public;
index index.php index.html index.htm;
include /etc/nginx/mime.types;
 # tell users to go to SSL version this time
     if ($ssl_protocol = "") {
     rewrite     ^   https://$server_name$request_uri? permanent;

 add_header Strict-Transport-Security "max-age=15768000";
 ssl_certificate /etc/nginx/rocket.crt;
 ssl_certificate_key /etc/nginx/rocket.key;
 ssl_dhparam /etc/nginx/rocket_dhparam.pem;
 ssl_session_cache shared:SSL:10m;
 ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
 ssl_prefer_server_ciphers on;
 error_page 497  https://$host:$server_port$request_uri;
 ssl_verify_client on;
 ssl_verify_depth 10;
 ssl_client_certificate /etc/nginx/allcerts.pem;

location / {
     try_files $uri $uri/ /index.php$is_args$args;
     include /etc/nginx/mime.types;

location ~ \.php$ {
        proxy_pass http://app;
        proxy_http_version 1.1;
        proxy_set_header Host $host:$server_port;
        proxy_set_header Referer $http_referer;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Forwarded-Ssl on;
        proxy_set_header X-Nginx-Proxy true;
        proxy_set_header X-Client-Verify $ssl_client_verify;
        proxy_set_header X-Client-DN $ssl_client_s_dn;
        proxy_set_header X-SSL-Issuer $ssl_client_i_dn;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_redirect off;

        proxy_send_timeout 86400;
        proxy_read_timeout 86400;
        include /etc/nginx/mime.types;

    location ~ /\.ht {
    deny all;

As I mentioned, none of the other solutions have worked. Can anyone see a mistake that could be causing this? I have put the proxy_ directives in both locations, with the same effect. Any help would be extremely appreciated.


The location containing proxy_pass is set to only proxy PHP files. This line here

location ~ \.php$ {   

The first thing I'd try is moving that whole block into the main "location /" block.

Your https rewrite uses an if statement, which isn't ideal - read "if is evil". If you want clients to use https the best way is to create a series of servers to forward, like this

# Forward non-www requests to www
server {
  listen       80;
  server_name  example.com www.example.com;
  access_log  /var/log/nginx/hr.access.log main buffer=128k flush=1m if=$log_ua;
  return       301 https://www.example.com$request_uri;

server {
  listen 443 ssl http2;
  server_name example.com;

  ssl_certificate /var/lib/acme/certs/***CERT_DIRECTORY/fullchain;
  ssl_certificate_key /var/lib/acme/certs//***CERT_DIRECTORY/privkey;

  # Set up preferred protocols and ciphers. TLS1.2 is required for HTTP/2
  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
  ssl_prefer_server_ciphers on;

  access_log  /var/log/nginx/hr.access.log main buffer=128k flush=1m if=$log_ua;

  return 301 https://www.example.com$request_uri;

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