[web-nfc] Fix external type validation algorithm (#511)

zolkis has just created a new issue for https://github.com/w3c/web-nfc:

== Fix external type validation algorithm ==
As noted [here](https://github.com/w3c/web-nfc/issues/350#issuecomment-570529776)

> Probably what we should do instead is figure out if `dns-part` is literal IPv6 and take the _first_ `:` as delimiter after it, allowing `:` in the `name-part` of external types. 

Please view or discuss this issue at https://github.com/w3c/web-nfc/issues/511 using your GitHub account

Received on Friday, 3 January 2020 10:39:19 UTC