unpkg can be slow resolving semantic versions

[joanise]

Sometimes (today, really a lot!) unpkg needs a long time to resolve ^0.2.1 whereas 0.2.1 loads nearly instantly.

Question: should we consider using fixed versions instead of ^0.2.1, or is this just par for the course and it's life?

This problem was not very visible with @roedoejet/readalong@^0.1.6, but it's suddenly very visible with @readalongs/web-component@^0.2.1. Is there a difference between those two accounts on unpkg?