I’m helping a client set up their first Twitter Card. We confirmed that our secure POST URL and parameters work correctly outside of Twitter. 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? Is there some change I need to make to our security certificate?