Tests that browser.Target.setAutoAttach() attaches to new service workers.
Started and attached to service_worker target, waitingForDebugger=true
self.globalVar = undefined
Resumed, self.globalVar = 2020
Tests that browser.Target.setAutoAttach() attaches to new service workers.
Started and attached to service_worker target, waitingForDebugger=true
self.globalVar = undefined
Resumed, self.globalVar = 2020