[TheAceOfHearts]

This sounds like a really powerful feature. I love how it uses JavaScript, which makes it much more approachable for web developers.

My experience with Service Worker APIs hasn't been very positive, although I don't have any suggestions for ways it could be improved, so I apologize for the non-constructive feedback. Maybe after using it more I'll change my mind. I recognize that everyone involved is likely working hard to provide an API that's capable of handling a wide range of problems, many of which I likely haven't even considered.

Here's a more actionable complaint: fetch doesn't support timeout or abortion. I have a hard time understanding how this isn't a problem for more people. Say what you will about XMLHttpRequest, at least it supports these basic features. As an end-user, I always find it absolutely infuriating when things hang forever because a developer forgot to handle failure cases.

I'd love it if you published a locally runnable version. Aside from making it easier to configure and experiment, it would give me peace of mind to know that I could continue to use the same configuration if Cloudflare decided to terminate my service.

[kentonv]

Abortable fetch actually just recently became a thing, as in the Github issue was closed 9 days ago. More info:

https://developers.google.com/web/updates/2017/09/abortable-...

We'll be implementing soon.