<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{HTTPS} off
#RewriteCond %{REQUEST_METHOD} !POST
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=307]
# Check is file or path is really exists!
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-l
RewriteRule ^(.*)$ /index.php?$1 [L]
</IfModule>
Force POST|GET to HTTPS htaccess
Imran Nababan 