Getting TypeError (Failed to Fetch) during periodic sync #182
Description
I have Sentry running, and I am getting a large number of unhandled rejections throw from the call to fetch(swUrl) called by the registerPeriodicSync function inside the pwa.client-mjs file.
It is hard for me to explain how to reproduce this, but one way is to copy the code to somewhere you control and put in an illegal URL as the swUrl, for example https://nfkdslfsd.
First question is why this is happening. Second question is if it is safe to ignore these unhandled rejections. And if it is safe to ignore them... should the library catch and swallow them?