Like the concept and found it quite smooth, yet to scan the created QR hope system don't tweak the bitcoin address in the process 
You can always use an online QR scanner (ex. WebQR) and check everything (before using it).to OP, your system does not recognize Bech32 addresses which are bitcoin addresses starting with bc1, the result is just clean QR without BTC in the middle.
It works on my side.I am open to your suggestions.
- If you can't implement what "Pursuer suggested", then I suggest to get rid of the "Search for Cryptocurrency... field" and instead, add those 29 supported cryptos to the top (heading - just use their logos) so users can easily click on them.- At least try to offer it for the top 50 crypto-currencies.