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Why do you need to detect redirects in a PWA page? Well a PWA is established on a specific domain. You might need to redirect to a new domain at some point. You can easily do it server side with simple commands, but as PWA is cached in a specific way it will remain on the old domain. PWA will not be able to do calls to redirected API because of CORS. And it might never move on because when your admin redirected domains you will not be able to get a new service worker either. So you need to think ahead and plan for this. But how?

Mobile browsers vs browser extensions. In this article I'll provide a know how on how to use browser extensions on mobile browser such as Firefox. Specifically – how to install Tampermonkey on Firefox. Tampermonkey is the one that allows to install user scripts (custom JavaScript for websites).

In my previous PWA article I've covered PWA basics. In this article I will cover more complex situations where a simple Service Worker is not enough. I will also talk about differences between new Service Worker Cache and HTTP Cache and how they interact. That's because they do interact and not knowing how they work together might cause problems.

I assume you have basic knowledge of PWA and you've seen at least a basic Service Worker. If not, please read my previous article first.