register-sw

gistfile1.js

      // Check for Service Workers and register service worker script
      function registerServiceWorker(workerFile) {
        console.log("Checking for service workers...");
        if ('serviceWorker' in navigator) {
          navigator.serviceWorker.register(workerFile, {
            scope: './'
          }).then(function(reg) {
            console.log("Service Worker Successfully Registered");
            enableSubmitButton();
          });
        }
      }