Bypass HSTS on local dev sites

HTTP Strict Transport Security will BLOCK your dev site if it is using a self signed certificate. And once the browser has given you that, it remembers it, so fixing it doesn’t help until you fix Firefox/Chrome.


  • Close any tabs
  • Ctrl + Shift + H (Cmd + Shift + H on Mac)
  • Find the site in question
  • Right click, forget about this site
  • Close and reopen browser
  • Add certificate exception this time 😎


  • chrome://net-internals/#hsts
  • type the hostname into the Query Domain
  • If found, enter the domain in the Delete domain section 😎


Self Signed SSL certificates that don’t look self signed

If you’ve ever used a self signed SSL certificate, you’ll know that although the connection is secure, you don’t get the full green padlock in the browser. You’re about to fix that, and speed your website up at the same time.

The secret is to pump your DNS through Cloudflare! If you visit there and sign up, you can add your domain names and point them to your server. By setting up Cloudflare, your site will improve in speed due to cacheing, and be more secure from DDOS attacks.

The first step is to create your SSL certificate. Log in to your server, and run the following commands as the root user:

➜ mcleandigital openssl genrsa -out "/home/mcleandigital/ssl.key" 2048 
Generating RSA private key, 2048 bit long modulus
e is 65537 (0x10001)
➜ mcleandigital openssl req -new -key "/home/mcleandigital/ssl.key" -out "/home/mcleandigital/ssl.csr" 
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
Country Name (2 letter code) [AU]:GB
State or Province Name (full name) [Some-State]:Scotland
Locality Name (eg, city) []:Glasgow
Organization Name (eg, company) [Internet Widgits Pty Ltd]:McLean Digital Limited
Organizational Unit Name (eg, section) []:
Common Name (e.g. server FQDN or YOUR name) []:*
Email Address []

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:McLean Digital Limited
➜ mcleandigital openssl x509 -req -days 1095 -in "/home/mcleandigital/ssl.csr" -signkey "/home/mcleandigital/ssl.key" -out "/home/mcleandigital/ssl.crt" 
Signature ok
subject=/C=GB/ST=Scotland/L=Glasgow/O=McLean Digital Limited/CN=*
Getting Private key

The above output has generated the SSL certificate. Next step is to set your virtual hosts:

<VirtualHost *:80>
    RedirectPermanent /

<VirtualHost *:443>

        DocumentRoot /var/www/

        SSLEngine on
        SSLCertificateKeyFile /home/mcleandigital/ssl.key
        SSLCertificateFile /home/mcleandigital/ssl.crt

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        <Directory "/var/www/">
                Options -Indexes +FollowSymLinks
                Order allow,deny
                Allow from all
                AllowOverride All
                Require all granted

The above configuration redirects all port 80 traffic to port 443. Now if you restart the server, you will be able to access your website securely, however, the green padlock is not showing. This is expected as usually you would pay for a certificate from a certificate authority (CA) .

Now the fun part. Sign in to, and add your website.They give you instructions, and it’s pretty easy to setup.

If your site is hosted on a different server than your hosting company, you need to change the DNS on the domain name hosting provider to point to cloudflare, and not directly to your server. So a request will hit the domain company, which DNS sends to cloudflare, and the DNS on cloudflare points to the IP of your server.

Lastly, in cloudflare, click on the crypto tab, and set SSL to full. The great thing is, you get the cloudflare certificate presented to the end user, and our self signed certificate is hidden away behind cloudflare!

It turns out domain validated SSL’s will be free from December 3rd anyway (checkout, however, this may still be the better option due to all the nice free features cloudflare offers! As always, have fun!