29 <Location /shop/>
30 ProxyPass "https://shop.example.com/"
31 ProxyPassReverse "https://shop.example.com/"
32
33 Options +Indexes +ExecCGI +FollowSymLinks -MultiViews
34 Order Allow,Deny
35 Allow from all
36 </Location>
37
Home page loads fine however, I have static urls in html pages to https://shop.example.com/ is it possible to have those rewriten to / relative urls?
You can rewrite anything yes, but the simpler you configure it the better in the long run.
On another note, you should not still be using Order/Allow/Deny directives, those are deprecated.
About the whole thing:
I would just create two virtualhosts with their appropriate documentroots and configurations in virtualhost, that would be the simplest, less painful, more straightforward way to do it generally.