fix .htaccess... finally

Author: tfrancart

static/.htaccess

@@ -2,8 +2,8 @@
 RewriteEngine on
 
 # Transfer everything from http to https
-RewriteCond %{HTTPS} off
-RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
+RewriteCond %{HTTP:X-Forwarded-Proto} !https
+RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=302,L]
 
 # Redirect visitors who request the root domain path (e.g. www.sparna.fr) to the appropriate language version
 # Fallback to English version if no matching browser language defined