Help needed for www.pombase.org/pombemine configuration

Hi.

I've added a ProxyPass rule for pombemine on www.pombase.org:

```ApacheConf

ProxyPass http://pombemine.rahtiapp.fi/pombemine retry=10
ProxyPassReverse http://pombemine.rahtiapp.fi/pombemine

```

The initial page is retrieved correctly by the browser but the other URLs don't have the correct prefix:

So for example this:
```
https://www.pombase.org/js/compiled/app-fc93e4c.js
```
should be:
```
https://www.pombase.org/pombemine/js/compiled/app-fc93e4c.js
```

Is it possible to configure the PombeMine front end to prefix URLs with `https://www.pombase.org/pombemine/` rather than `https://www.pombase.org/`?

If you'd like to test anything it's here: https://www.pombase.org/pombemine/

Thanks!

Start at the PombeMine front end served from https://www.pombase.org/pombemine/ and inspect how it generates links to /js/compiled/app-fc93e4c.js and other URLs. Compare those URLs with the Apache ProxyPass and ProxyPassReverse configuration shown in the issue; done means the application works correctly under the /pombemine/ prefix without requesting root-level paths.

Written by the indexing model from the issue text.