Add a verbosity query parameter / flag(==config option) into the REST API / CLI to trim the exception stack traces, which means excluding the location information.
The result would be something like this:
This approach renders even the biggest stack traces fairly readable, and is rather convenient since it only requires changes in the actual user-facing components.
Logging would not be impacted by this.
The trimming was already implemented in this PR, but the flags are missing.