The frontend traces are sent to the backend using an AJAX request, which is ignored by the frontend instrumentation, but still picked up by the server instrumentation. These should be ignored by the server instrumentation. This could be done in a similar way to the heartbeat requests.
Conversely the heartbeat requests are currently ignored by the server instrumentation, but not the frontend instrumentation.
The frontend traces are sent to the backend using an AJAX request, which is ignored by the frontend instrumentation, but still picked up by the server instrumentation. These should be ignored by the server instrumentation. This could be done in a similar way to the heartbeat requests.
Conversely the heartbeat requests are currently ignored by the server instrumentation, but not the frontend instrumentation.