In a Catch-22 situation where SagePay won't approve a merchant account for client unless we have a working dev site for them to test a transaction on which is set up to integrate with … SagePay.
Anyway, have set up a CartThrob install using Twitter bootstrap to keep things simple with the gateway at checkout set to 'SagePay Europe Offsite (Server)'. However, on checkout I get the following error message:
Error <url> malformed (3)
Not sure how to troubleshoot or debug. My immediate guess is that the vendor name (which I don't yet have as the merchant account is pending approval) is required for sending a user to SagePay during checkout. Is that correct?