Unable to pay over Lightning using BIP(3)21 URI with BOLT 12 offer and label + message parameters

[ConorOkus]

This is follow up to #735 (comment)

Scanning the below QR code results in only attempting to pay the fallback on chain-address

bitcoin:BC1QYLH3U67J673H6Y6ALV70M0PL2YZ53TZHVXGG7U?amount=0.00001&label=sbddesign%3A%20For%20lunch%20Tuesday&message=For%20lunch%20Tuesday&lno=LNO1PG257ENXV4EZQCNEYPE82UM50YNHXGRWDAJX283QFWDPL28QQMC78YMLVHMXCSYWDK5WRJNJ36JRYG488QWLRNZYJCZS

[dpad85]

The offer contained in the URI is rejected as invalid because it uses a TLV tag 30 which is not understood. Will check if that's on purpose, or a bug.

That's why Phoenix falls back to the on-chain address.

[dpad85]

So Phoenix's behaviour is normal, TLV 30 is unknown and an even number, so it must be rejected. Do you know what this TLV represents, or where the offer comes from?

[ConorOkus]

Thanks for checking this, this it what is currently displayed at https://bitcoinqr.dev/

I can follow up there to get this fixed.