How the worker treats same-origin subresources. cache answers an immutable one from
CacheStorage; passthrough leaves it to the browser's own cache with no worker involvement;
static-routing asks the browser (InstallEvent.addRoutes) to send only navigations, beacons
and routed paths to the worker and everything else to the network, and acts as passthrough where
the API does not exist.
How the worker treats same-origin subresources.
cacheanswers an immutable one from CacheStorage;passthroughleaves it to the browser's own cache with no worker involvement;static-routingasks the browser (InstallEvent.addRoutes) to send only navigations, beacons and routed paths to the worker and everything else to the network, and acts aspassthroughwhere the API does not exist.