Added polyfill

src/utils/index.ts

@@ -4,3 +4,4 @@ export {Logger, HttpLogger} from './logging';
 export {setupAuthProxy} from './auth-proxy';
 export {Resolvable, WaitForSync} from './helpers/resolvable';
 export {getReloadRouter} from './auto-reload';
+export {polyfillRoute} from './polyfill';