offline-plugin: occasional service worker failures (causing a broken app)

My application uses multiple chunks to split the code.

From time to time I noticed that the application fails to load chunks/URLs, with no apparent reason.

Once it fails, it is not able to recover by itself. For example, force-closing the browser or restarting the device does not help. The very same URL keeps failing.

The only possibility to “fix” the problem is to manually clear all(!) the application data in the browser.

Right now this problem appeared once again on my phone (Samsung S7 running Chrome 54), so I started a remote debugging session using Chrome devtools.

There isn’t much to see in the console log, except for this suspicious message:

Service Worker termination by a timeout timer was canceled because DevTools is attached.

The network tab shows this for the “failing” request:

The Response tab says This request has no response data available.

In case it helps, here you can see all the network requests since application start:

In other browser sessions the URL (which is correct) can be loaded without any problems. In fact, on other computers the same app works fine.

What can cause this?