Debugging https issues

[richdougherty]

So what is the purpose of this section of application.conf?

Good question! I discussed some quirks of configuration in another topic:

@richdougherty

There’s one additional wrinkle. When running in dev mode, i.e. when you use the run command in sbt, there can be more than one ActorSystem running at the same time. The server ActorSystem is started immediately. It listens to HTTP requests and then compiles and starts the user application - which has its own ActorSystem. The application ActorSystem is started and stopped whenever the application is restarted and recompiled, and it runs in a different ClassLoader to allow reloading.

In dev mode the application ActorSystem reads its configuration from akka and akka.http like usual. Unfortunately the server ActorSystem handling the HTTP requests needs to have different configuration so it reads its settings from play.akka.dev-mode and play.akka.dev-mode.http. In addition, this ActorSystem doesn’t have access to the application.conf due to the fact that it doesn’t share the application’s ClassLoader. So if you want to reconfigure Akka HTTP in dev mode you’ll need to do so via configuration in a JAR file.