I have a site that's running EE 3.3 and I'm trying to change it to include the SSL certificate that's just been installed on the server.
I normally can change the config or the URL settings to include the https and then update the .htaccess to force https on all the urls. However when I try this the site just gets caught in a loop.
I've tried removing everything out of the .htaccess and then trying but it then redirects back to the http.
I've also set up a plain html test page outside EE and I can access that if I go to it but if I then visit the website and then go back to the test page it redirects back to the homepage.
Going round in circles so would appreciate any help.
The test page where you can see the SSL working is https://www.cofesuffolk.org/test.html
If you visit this and then go to http://www.cofesuffolk.org the site loads but if you go back to the test page it loops back to the homepage.
Thanks in advance.