hedgedoc: Fix reverse proxy configuration
- varnish/vhost: Use dash separators in x-forwarded-proto header (actually blocking)
expressjs backend engine does not agree with the _ separated version. Apparently, current other backends seem somewhat ok with the existing versions though.
-
varnish: Add websocket support (hedgedoc frontend needs it)
-
hedgedoc: Drop unneeded empty configuration (more cosmetic than anything)
Related to T2935
Test Plan
vagrant up admin-bardo vagrant up admin-rp1
we can now have a full (still anonymous or registered via email) edition (without the wheel of death ;)
Migrated from D4831 (view on Phabricator)