CONSOLE MESSAGE: line 1965: TypeError: undefined is not an object (evaluating 'this.get_interface_object().prototype')

Harness Error (FAIL), message = TypeError: undefined is not an object (evaluating 'this.get_interface_object().prototype')

FAIL ServiceWorkerGlobalScope interface: existence and properties of interface object assert_own_property: self does not have own property "ServiceWorkerGlobalScope" expected property "ServiceWorkerGlobalScope" missing
FAIL ServiceWorkerGlobalScope interface object length assert_own_property: self does not have own property "ServiceWorkerGlobalScope" expected property "ServiceWorkerGlobalScope" missing
FAIL ServiceWorkerGlobalScope interface object name assert_own_property: self does not have own property "ServiceWorkerGlobalScope" expected property "ServiceWorkerGlobalScope" missing
FAIL ServiceWorkerGlobalScope interface: existence and properties of interface prototype object assert_own_property: self does not have own property "ServiceWorkerGlobalScope" expected property "ServiceWorkerGlobalScope" missing