On your iPad, iPhone or iPod, go to Settings > Safari > Advanced and toggle on Web Inspector.On recent versions of iOS (v6 and up), Apple offers a remote debugger for your iPhone, iPod or iPad’s Safari web browser. This post describes how to set one up, connected to your phone so you can figure out what went wrong. When we were testing our implementation of Apple Pay on our iPhones, we found a few issues where we needed a proper debugger.
