I’m helping a client set up their first Twitter Card. We were able to confirm that our secure POST URL and parameters work correctly outside of Twitter using Postman. However, when I test the card within the Twitter Card tool, I get the following error:
Result: Failure. Error submitting card data: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed.
How can I resolve this error? Do I need to make changes to my security certificate?