ServiceWorker

fb87f29e - Make the promise settlement type of WindowClient.navigate() nullable (#1253)

Make the promise settlement type of WindowClient.navigate() nullable (#1253) The navigate() can be resolved as null if If browsingContext’s Window object’s environment settings object’s creation URL’s origin is not the same as the service worker's origin[1]. [1] https://w3c.github.io/ServiceWorker/#ref-for-dom-windowclient-navigate