Why is my pop-up form not closing when a customer clicks the “X” button?

Dead pop-up close buttons are caused by JavaScript errors that halt the execution of the close event function handler, or when third-party modal apps conflict with local theme scripts.

“Most minor website breaks are caused by simple script conflicts, legacy code blocks, or broken API handshakes. We identify and clear these issues immediately as a straightforward, one-time fix.”
— Jeff Bollettino, Managing Director, Ignite Conversions