ubuntu - Can't remove forced HTTPS redirect from Nginx?

itemprop="text">

I had originally setup my Nginx
configuration to automatically redirect HTTP to HTTPS. Due to my work security policy
and Cloudflare integration, HTTPS will not resolve inside my
network.

I'd simply like to remove the forced
redirect to HTTPS. But after commenting out the block with the URI rewrite, the server
still redirects automatically.

Here's my default
config for Nginx

#HTTPS redirect
            (if necessary)

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

server {
 listen 80;

            listen [::]:80 default_server ipv6only=on;
 listen 443 ssl
            spdy;

 root /var/www/example/current/public;
 index
            index.php index.html index.htm;

 spdy_chunk_size 8k;

            spdy_headers_comp 7;

 server_name example.com;
 # Point
            to ssl certificates
 ssl_certificate /root/example.com.crt;

            ssl_certificate_key /root/example.com.key;

 # Allow only secure TLS
            protocols
 ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

            #ssl_prefer_server_ciphers on;
 #ssl_ciphers
            AES256+EECDH:AES256+EDH:!aNULL;

 ssl on;

 #
            Set the buffer size to 1400 bytes (that way it fits into a single MTU$

            ssl_buffer_size 1400;
# add_header Strict-Transport-Security
            max-age=63072000;


 gzip on;
 gzip_min_length
            1280;
 gzip_buffers 16 8k;
 gzip_comp_level 4;

            gzip_http_version 1.0;
 gzip_types text/plain text/html text/css
            application/javascript appl$
 gzip_vary on;

 location /
            {

 # First attempt to serve request as file, then
 # as
            directory, then fall back to displaying a 404.
 try_files $uri $uri/
            /index.php$is_args$args;
 }

 # pass the PHP scripts to
            FastCGI server listening on /var/run/php5-fpm$
 location ~ \.php$ {

            try_files $uri /index.php =404;
 fastcgi_pass
            unix:/var/run/php5-fpm.sock;
 fastcgi_index index.php;


            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_nam$
 include
            fastcgi_params;
 }

 location ~*
            \.(css|js|gif|jpe?g|png|woff2?)$ {
 #gzip on;
 #gzip_vary
            on;
 expires 168h;
 add_header Pragma public;
 add_header
            Cache-Control "public, must-revalidate, proxy-revali$

 add_header
            Vary "Accept-Encoding";
 }


 #include
            /etc/nginx/global/*;
}

Any
help would be greatly appreciated! Thank you.

class="post-text" itemprop="text">

class="normal">Answer

First of all, remove ssl
on;

Second, you had
Strict-Transport-Security header and browsers remembered that
for 2 years (as that commented out header says). Add it back with
max-age=0 to remove the
effect.

If you can't do that (or want immediate
effect) clear HSTS from your browser like href="http://classically.me/blogs/how-clear-hsts-settings-major-browsers"
rel="noreferrer">this article says.