Can't help you with the code, but did you take this into account?
https://blog.moneybutton.com/2018/09/24/how-to-enable-money-button-on-safari-and-ios/
What the chain says
- Block
- 650 719
- Time
- 2020-09-01T20:50:01Z
- Signer
- 18Jr7sfDWrCFp1dTFHfegzJ6L6TR3MKJ3H
- App
- twetch
- Type
- post
- Content type
- text/plain
- Name in tx
- twetch#1825
Fields the transaction did not carry are omitted. Open the payload to see the bytes as stored.
Signed by
18Jr7sfDWrCFp1dTFHfegzJ6L6TR3MKJ3H Verified