rewrite redirect exclude path

[eric tse <hfetse@xxxxxxxxx>]

Good afternoon afternoon masters,

I have rules initially look like this

*******************************

RewriteRule ^/$ https://frontend.domain.com/foo/bar/  [R, L]

RewriteRule ^/(.*)$ https://backend.domain.com/$1 [P,L]

ProxyPassReverse / https://backend.domain.com/

*********************************

I would like to integrate some requirements,

i.e. if root or path not equal /foo/bar/* or /foo/bar1/* redirect to

https://backend.domain.com/foo/bar

Can you please help what's the best syntax to approach this?

Many thanks,
Eric