Eduardo Lundgren

LGTM. Do you have the branch reference to look the implementation?

@yuchi throw a runtime error if the component is already registered is a good suggestion to make the component registry less "leaky".

@yuchi I meant, throwing an error on Metal.js component registry, similar to what you described on custom elements. Wasn't that your suggestion?

Maybe we need to change the behavior to **if a required attribute has default value set** we allow it to be missing from the constructor. WDYT?

In order to achieve that we need to first make sure we don't rely on express proprietary apis, such as `res.type()` and so on, it's doable to rely only on...

:+1:

You're right; the project hasn't seen much activity for about five years. We've been on the lookout for contributors during this time, but unfortunately, we haven't had much luck finding...

Yes, please.