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I am having issues with fetch() statements in my service worker in a progressive web app installed on my Android phone (with Chrome). Ordinarily this would be easy to debug by sending messages to console, but without a console, I'm just working blindly using trial and error. (and it's not working!)

How can I debug a service worker on a phone installed PWA?

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    Indeed, it could be a problem. Could you provide a Minimal, Reproducible Example of a PWA to debug, with an example of an issue? Commented Nov 13 at 5:10
  • @SergeyAKryukov thanks but my question is not about fixing the issue itself (which I'm sure is straightforward enough) but is about how to debug a PWA service worker without console messages? Commented Nov 14 at 13:15
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    Understood. I guess you can do it using DevTools, with the debugger; instructions. At a glance, it doesn't look so easy... I found https://developer.chrome.com/docs/devtools/progressive-web-apps, but I did not try it all. Commented Nov 14 at 14:46
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