Protected Optional_Protected_ProtectedenvironmentProtectedgetThrows if hostPatternPromise is not yet resolved.
Optionalhostname: stringProtectedgetThrows if hostPatternPromise is not yet resolved.
ProtectedinitCalled when the application is started. The application shell is not attached yet when this method runs. Should return a promise if it runs asynchronously.
Fetch values from the backend's environment and caches them locally. Helps with deploying various mini-browser endpoints.