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Open the app

Open the app at

Open DevTools

Right-click inspect element and select the Debugger tab. Then click command + P to search for and open two files:

  • client.js,
  • and firebase-messaging-sw.js.

You'll likely need to open the Application tab in DevTools and navigate to the Service Workers side tab. Then click the link for firebase-messaging-sw.js to inspect it in the Sources tab.




{% embed data="{"url":"\",\"type\":\"video\",\"title\":\"Walkthrough: Cloud Messaging","description":"Full-Stack Firebase:\n\n","icon":{"type":"icon","url":"\_144-vfliLAfaB.png\",\"width\":144,\"height\":144,\"aspectRatio\":1},\"thumbnail\":{\"type\":\"thumbnail\",\"url\":\"\",\"width\":1280,\"height\":720,\"aspectRatio\":0.5625},\"embed\":{\"type\":\"player\",\"url\":\"\",\"html\":\"<div style=\"left: 0; width: 100%; height: 0; position: relative; padding-bottom: 56.2493%;\"><iframe src=\";showinfo=0\\\" style=\"border: 0; top: 0; left: 0; width: 100%; height: 100%; position: absolute;\" allowfullscreen scrolling=\"no\"></iframe>","aspectRatio":1.7778}}" %}