How to redirect to HTTPS with .htaccess on Heroku Cedar stack

Question

I\'m new to cloud hosting...

I\'m working on a PHP web app that\'s hosted on Heroku as a \"Cedar\" app. Heroku offers \"piggy back\" SSL to all their subdomains, so

Answer 1

I added one line to the great answer given above so it doesn't break my local dev environment which doesn't have SSL configured:

# If header is present in the request
RewriteCond %{HTTP:X-Forwarded-Proto} .

(Note RewriteRule is applied only if all preceeding RewriteCond's hold).