DevTools breaks images

Enabling the XDN DevTools on my XDN Starter Site results in broken images on my site.

In the console I see net::ERR_Failed for image GET requests.

We’re able to reproduce the issue and should have a fix out in the next few days. This only seems to happen if images are loaded from a 3rd party and you specifically configure the service worker to cache them using Prefetecher#cache. It’s probably a better idea to cache images using the browser’s HTTP cache instead of the service worker anyway, to minimize the amount of requests being processed by the service worker.