Firefox redirecting Nginx rewrite - firefox

Question

Firefox is the only browser I am having issues with. I have found similar issues, but no solutions seem to work.
When I visit http://example.com nginx rewrites it as http://www.example.com.
I did this because the site used ssl sitewide, where now that has remains on the initial server using a subdomain, so is https://subdomain.example.com. Search engines, old bookmarks, and other old links attempted to take the user to https://example.com.
In all Browsers this works like a charm, except in firefox.
The Problem: Firefox takes the users request of http://example.com and forwards them to https://subdomain.example.com.
And then from the search engine link that reads https://example.com, an SSL error is raised because it's trying to read subomain.example's.
I'm getting confused and now it's 430 in the morning. Does someone have any clues here?
Here's my nginx conf:
upstream thin_server {
server 0.0.0.0:8080 fail_timeout=0;
}
server {
listen 80 default;
listen 443 ssl;
ssl off;
root /home/example/public;
server_name example.com www.example.com;
ssl_certificate /etc/nginx/ssl/www.example.com.chained.crt;
ssl_certificate_key /etc/nginx/ssl/example.key;
index index.htm index.html;
if ($host = 'example.com') {
rewrite ^/(.*)$ http://www.example.com/$1;
}
location / {
try_files $uri/index.html $uri.html $uri #app;
}
location ~* ^.+\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|mid|midi|wav|bmp|rtf|js|mp3|flv|mpeg|avi)$ {
try_files $uri #app;
}
location #app {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://thin_server;
}
error_page 500 502 503 504 /500.html;
client_max_body_size 4G;
keepalive_timeout 10;
}
UPDATE Just started working randomly a couple of days later

Answer 1

I had the a similar issue, Chrome was working fine, IE and firefox did not working with the http to https redirect.
I was searching for a day, build various configurations but nothing helped.
By accident I checked my firewall (ufw status) and realized that port 80 was not open, only 443.
After allowing port 80 it worked.
Here is my nginx config which is working ( I know it is not optimized )
# Redirect http to https
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name domain.tl www.domain.tl *.domain.tl;
return 301 https://www.domain.tl$request_uri;
}
#HTTPS config for SSL with certificate
server {
listen 443 ssl;
listen [::]:443 ssl;
server_name www.domain.tl www.domain.tl;
#Limited Cipers to avoid MD5 etc attacks
ssl_ciphers 'EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH';
ssl_prefer_server_ciphers on;
ssl_session_cache shared:SSL:10m;
#Limit to TLSv1.2 for security
ssl_protocols TLSv1.2;
#Chained certificate to make sure the intermediate is in
ssl_certificate /etc/nginx/ssl/certificate.chain.crt;
ssl_certificate_key /etc/nginx/ssl/certificat_key.key;
#PHP, Wordpress etc config
root /var/www/html;
index index.php index.html index.htm;
# unless the request is for a valid file, send to bootstrap
location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
#try_files $uri $uri/ =404;
#Rewrite rule fuer Wordpress
try_files $uri $uri/ /index.php?$args;
}
# PHP7 specific
location ~ \.php$ {
try_files $uri =404;
#fastcgi_pass 127.0.0.1:9000;
# With php5-fpm:
#fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
# OLD CONFIG for php5
# location ~ \.php$ {
# try_files $uri =404;
# fastcgi_split_path_info ^(.+\.php)(/.+)$;
# fastcgi_pass unix:/var/run/php5-fpm.sock;
# fastcgi_index index.php;
# include fastcgi_params;
#}
}