
PASS Setup worker 
PASS FetchEvent respondWith should throw if called twice 
PASS FetchEvent request is SameObject 
PASS FetchEvent should be in error if responding with undefined 
PASS FetchEvent should be in error if not responding with a Response 
PASS FetchEvent should be in error if responding with a Promise that does not resolve to a Response 
PASS FetchEvent should be in error if responding with a Promise that rejects 
PASS FetchEvent should resolve when responding with a Response