In chapter two of Going Offline, I talk about registering your service worker wrapped up in some feature detection:
But I also make reference to a declarative way of doing this that isn’t very widely supported:
So if you’re reading Going Offline, when you get to the bit about someday using the
rel value, you can cast a wistful gaze into the distance, or shed a tiny tear for what might have been …and then put it out of your mind and carry on reading.
# Shared by Jan Skovgaard on Friday, June 8th, 2018 at 2:39pm