I've got a php script that forwards the user based on what subdomain the wrote in the url.
Now, normally you would read the HTTP_URI, but my webhost are using iframe, so I have to read the HTTP_REFERRER.
now to the problem, when accessing the site "normal", like mysite.com or
it works fine, however, when using https, it only shows a white page.
This is my code:
<?PHP
$REFERRER = $_SERVER['HTTP_REFERER'];
// Or other method to get a URL for decomposition
$domain = substr($REFERRER, strpos($REFERRER, '://')+3);
$domain = substr($domain, 0, strpos($domain, '/'));
// This line will return 'en' of 'en.example.com'
$subdomain = substr($domain, 0, strpos($domain, '.'));
//Echo $subdomain;
header("Location: https://example2.com/'$subdomain");
?>
.. Anybody got any suggestions? Rewriting doesn't work on subdomains on this server.
As discussed in the comments the problem is "blocked loading mixed active content".
An iframe or its contents can not be loaded over http if the site containing the iframe is loaded via https.
use this for your https rewrite in your .htaccess
RewriteEngine On
RewriteCond %{HTTPS} off
# rewrite to HTTPS:
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
and you can use this for the subdomain
RewriteCond %{HTTP_HOST} ^subdomain\.domain\.com$ [NC]
RewriteRule ^((?!sub1/).*)$ /$1 [L,NC]
Explanation here