sw-precache-lab: regenerate service worker
sw-precache-lab: regenerate service worker

googlecodelabs/amp-pwa-workbox,google-developer-training/pwa-training-labs,googlecodelabs/workbox-lab,verioussmith/pwa-training-labs,google-developer-training/amp-ilt,verioussmith/pwa-training-labs,googlecodelabs/workbox-indexeddb,emoreno911/pwa-training-labs,googlecodelabs/amp-pwa-workbox,googlecodelabs/workbox-lab,google-developer-training/pwa-training-labs,emoreno911/pwa-training-labs,google-developer-training/amp-ilt,googlecodelabs/workbox-indexeddb