Had the same issue with wallets not supporting bitpay and made a quick app to solve that: It extracts the transaction requirements (bitcoin address, amount, min tx fee) out of Bitpay invoices (the same

Had "the protocol" issue when tried to make a transaction with a wallet not supporting bitpay and made a quick app to resolve that: It extracts the transaction requirements (bitcoin address,

Found that the noscript url-"hack" doesn't work anymore and made a quick app for extracting the tx output requirements out of Bitpay invoices (the same way supporting wallets do): Hope it will