Service Worker Detector 4+

For Web App Developers

Thomas Steiner Apps

    • Free

Screenshots

Description

This extension detects if a website registers a Service Worker [1] by reading the navigator.serviceWorker.controller property [2]. It also parses the Web App Manifest and displays the information in an accessible way. Find the source code of the extension on GitHub [3].

Why would you want this? If you aren’t into Web development, most probably you wouldn’t. However, if you are into Web development, the extension helps you identify (unexpected) Service Worker registrations in the wild and lets you analyze their code and learn from them.

Why would you use this extension and not just the amazing Chrome Developer Tools? The answer is that the extension proactively detects Service Workers before you even have to open the Developer Tools (which you probably eventually will end up doing anyway).

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[1] https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker
[2] https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/controller
[3] https://github.com/google/service-worker-detector

What’s New

Version 2.4.0

Updated third-party dependencies to the latest version and improved the table layout of the Cache tab.

App Privacy

The developer, Thomas Steiner Apps, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.