That's very cool, but browsers need to support it / understand what to do with it, not?

BTC_LN

bitcoin

Add LN to response code 'HTTP 402 Payment Required'

You can just add the invoice to the response body, right?

Something like:
```
{
  lnInvoice: "lntb1u1pwz5w78pp5e8w8cr5c30xzws92v36sk45znhjn098rtc4pea6ertnmvu25ng3sdpywd6hyetyvf5hgueqv3jk6meqd9h8vmmfvdjsxqrrssy29mzkzjfq27u67evzu893heqex737dhcapvcuantkztg6pnk77nrm72y7z0rs47wzc09vcnugk2ve6sr2ewvcrtqnh3yttv847qqvqpvv398",
  expiresAt: 1234567
}
  
```