Caching

[kronik]

Hey @malcommac,
awesome post, and exploration of networking part. I'm trying to implement cacheable operation and faced with one issue:

1. I put my cache check and loading code right before I make a network api call
2. If cache has a valid value then it resolves current promise with this value
3. But after that when I receive an updated data neither catch nor then are called

Tried to dig inside Promise implementation in Hydra and found that the reason is that in Observer call method it falls into a default case and does nothing.

What I'm doing wrong and what do you think might be the right way?