Error undefined on add to cart, compare and add to wishlist when using www.mysite.com

Hi

I have looked through old forum posts and have got myself completely confused.

My site is https://savannahsunset.com on OC Version 3.0.3.6
When I use www. in front of my sitename the icons for Add to Car, Wishlist and compare are missing and I get an "error undefined" on the products on the home page. See image attached.

Looking through old forum posts it looks like I need to add something into the htaccess and possibly config files. Please can you help me by giving me exactly what I need to change and where to make the changes and in which files.

Thanks

xxvirusxx wrote: ↑

Fri Mar 19, 2021 7:36 pm

viewtopic.php?t=183503

Thanks for this but it is precisely the reason I got confused - it does not help me in any way as there is so much code and no real solution.
Please help.
I need in detail how to make the website work with both https://www.mydomain.com as well as the default of https://mydomain.com. It is not the http to https - I have both working on https. I need to know how to get the site to accept the www and provide all the functionality I get without it.

Lots of different ways to do that. One such example. After RewriteEngine On.

Thank you for the help

The solution above looks a little bit incomplete.

Add this to .htaccess (the RewriteBase / should already be there so add the two lines below it)
RewriteBase /
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L]

Then make sure www is included in the HTTP and HTTPS URL section of both config.php files.