Redirect to wallet creation when signing message if user has no wallet

[DovAzencot]

Hi guys, I'm building an authentification around nimiq, using the testnet hub I redirect user to sign a message with their wallet. It's working fine. The only issue is in case the user as no existant wallet, I would expect the hub to redirect to the wallet creation. instead it display a blank page which as no purpose, with a button to chose another wallet which then prompte the user to create a wallet.