Why does my checkout button work on desktop but do absolutely nothing on iPhone?

This mobile-specific block happens when desktop hover styles (CSS) break mobile touch responsiveness, or when heavy cart tracking scripts timeout before execution on slower mobile web browsers.

“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