loop prevention

[alexanderkirtzel]

Is your feature request related to a problem? Please describe.
Using both source and destination from the same type might cause a recursive loop 😱.
E.g. dataLayer source listening for pushes and an active dataLayer destination would be bad.

Describe the solution you'd like
Check for the event.source.type and da destination.type in destinationPush. If it's set and equal, don't process the event.

[alexanderkirtzel]

All dataLayer-related destinations check if the event.source?.type === 'dataLayer' before further processing. This is better.