safe deepcopy Probe.REQUEST_HEADERS before populating/using - fixes #301 (#302)
safe deepcopy Probe.REQUEST_HEADERS before populating/using - fixes #301 (#302)


geopython/GeoHealthCheck,justb4/GeoHealthCheck,geopython/GeoHealthCheck,justb4/GeoHealthCheck,geopython/GeoHealthCheck,justb4/GeoHealthCheck,geopython/GeoHealthCheck,justb4/GeoHealthCheck