my website works well with GET method, also few POST methods.

Some pages with POST method doesn't work. Some pages with POST work. For example, login page uses POST that works fine. When I post the data on webpage, firefox says "Connecting..." and finally report connection timed out error.

The same behavior happens with Opera as well.

However Google Chrome works fine.

At the server side, I use nginx 1.2.4 with HTTPS and uwsgi for python (flask framework) app.

I use geotrust certificate.

The same behavior happens with Windows 7 and Ubuntu 12.04 on firefox.

• I tried firefox in safemode, but no luck.
• Set auto-detect proxy settings. no luck.
• Cleared all cookies. no luck

Anyone help me to fix this issue?

I am posting ngix config. shame on me. I use root, I know which is not advised. need to fix soon.

user root;
worker_processes 4;
pid /var/run/nginx.pid;

events {
    worker_connections 768;
    # multi_accept on;
}

http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    # gzip_vary on;
    # gzip_proxied any;
    # gzip_comp_level 6;
    # gzip_buffers 16 8k;
    # gzip_http_version 1.1;
    # gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # nginx-naxsi config
    ##
    # Uncomment it if you installed nginx-naxsi
    ##

    #include /etc/nginx/naxsi_core.rules;

    ##
    # nginx-passenger config
    ##
    # Uncomment it if you installed nginx-passenger
    ##

    #passenger_root /usr;
    #passenger_ruby /usr/bin/ruby;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;

        ssl_session_cache   shared:SSL:10m;
        ssl_session_timeout 10m;

    server {
        listen         80;  
        server_name  www.example.com;
        rewrite ^(.*) https://example.com$1 permanent;
    }

    server {
           listen         80;
           server_name    example.com;
           rewrite        ^ https://$server_name$request_uri? permanent;
    }

    server {
        listen              443;
        server_name         example.com;
        keepalive_timeout   70;

        ssl                 on;
        ssl_certificate     /root/cc.cert;
        ssl_certificate_key /root/cc.key;
        ssl_protocols       SSLv3 TLSv1 TLSv1.1 TLSv1.2;
        #ssl_ciphers         HIGH:!aNULL:!MD5;     


        ssl_ciphers RC4:HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers on;

        location / { try_files $uri @app; }
        location @app {
            include uwsgi_params;
            uwsgi_pass unix:/tmp/uwsgi.sock;
        }

    }

}


#mail {
#   # See sample authentication script at:
#   # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
# 
#   # auth_http localhost/auth.php;
#   # pop3_capabilities "TOP" "USER";
#   # imap_capabilities "IMAP4rev1" "UIDPLUS";
# 
#   server {
#       listen     localhost:110;
#       protocol   pop3;
#       proxy      on;
#   }
# 
#   server {
#       listen     localhost:143;
#       protocol   imap;
#       proxy      on;
#   }
#}