[keycloak-user] gatekeeper: cannot download big files

Hello, in our setup we secure a service via keycloak and access its web frontend through a gatekeeper proxy. Access is done from two locations: 1) Inside the same network. 2) From an offsite location While the first works fine, the latter has problems. Authenticating and the access itself work fine, but retrieving large files from the web application (we encountered this with a 16MB javascript file) fails. The file is downloaded incomplete. We checked the network. Connections speed is fine, there are no other proxies or firewalls in between. So from all our investigation it looks like gatekeeper is the pint of failure (logs look unsuspicious though). Do you have any hints or ideas what else we could try? Are there maybe some config options to try out?