Flatpak can't see /var/www directory

[beepmode]

I'm getting the following error when I try to navigate to the /var/www/ directory on my localhost:

Failed to change directory
'/var/www/' does not exist or cannot be accessed.

I can access the /home directory just fine, but that's not where my website lives locally.

I'm using the latest FileZilla flakpak from flathub.org (version 3.42.1) on Fedora 30. The error isn't SELinux related (I'm getting the same result in permissive mode).

[Tim Kosse]

We cannot support non-standard third-party distributions. Please contact your distributor for assistance.