Configuring WSGI with non-root folder

after upgrading from 6.1.2 to 6.2.2 i am trying to get WSGI to replace fastcgi, so far only with partial success. my seafile-installation uses apache with HTTPS and has seafile installed in a non-root domain.

the migration docs i found seem to cover standard cases only. the server docs suggest i need to add ProxyPass ! to the <Location /seafmedia> node, and replace

  SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
  ProxyPass /
  ProxyPassReverse /


  SetEnvIf Request_URI . proxy-fcgi-pathinfo=unescape
  SetEnvIf Authorization "(.*)" HTTP_AUTHORIZATION=$1
  ProxyPass /seafile fcgi://

is that correct? any more places i need to update?

if i do that, remove the caches and restart apache, seafile and seahub, i am being rerouted to, which is obviously wrong. am i missing something?