[web-nfc] Remove optional throwing (#199)

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

== Remove optional throwing ==
Either require language validation, or don't.

Please view or discuss this issue at https://github.com/w3c/web-nfc/issues/199 using your GitHub account

Received on Thursday, 21 February 2019 08:51:26 UTC