Ping service worker to keep it from going idle

mascara/src/proxy.js

@@ -3,10 +3,18 @@ const SWcontroller = require('client-sw-ready-event/lib/sw-client.js')
 const SwStream = require('sw-stream/lib/sw-stream.js')
 const SetupUntrustedComunication = ('./lib/setup-untrusted-connection.js')
 
+let intervalDelay =  Math.floor(Math.random() * (60000 - 1000)) + 1000
 const background = new SWcontroller({
   fileName: '/background.js',
+  letBeIdle: false,
+  intervalDelay,
 })
-
+window.onfocus = () => {
+  background.sendMessage('wakeUp')
+  .catch((err) => {
+    console.error('problem with wake up', err)
+  })
+}
 const pageStream = new ParentStream()
 background.on('ready', (_) => {
   let swStream = SwStream({

mascara/src/ui.js

@@ -18,10 +18,13 @@ const container = document.getElementById('app-content')
 var name = 'popup'
 window.METAMASK_UI_TYPE = name
 
+let intervalDelay =  Math.floor(Math.random() * (60000 - 1000)) + 1000
+
 const background = new SWcontroller({
   fileName: '/background.js',
+  letBeIdel: false,
+  intervalDelay,
 })
-
 // Setup listener for when the service worker is read
 background.on('ready', (readSw) => {
   let connectionStream = SwStream({

package.json

@@ -44,7 +44,7 @@
     "bluebird": "^3.5.0",
     "browser-passworder": "^2.0.3",
     "browserify-derequire": "^0.9.4",
-    "client-sw-ready-event": "^1.0.2",
+    "client-sw-ready-event": "^2.1.1",
     "clone": "^1.0.2",
     "copy-to-clipboard": "^2.0.0",
     "debounce": "^1.0.0",