I need to debug an HTML app on ipad. I used to be able to connect ipad by USB cable to my mac and it would show in the \"Develop\" menu in Safari. I have two ipads now - one w
You also need to enable web inspector from the device.
Open the settings app, select safari, select advance and then turn on web inspector.
ref: http://www.spiraltrack.com/blog/how-debug-iphone-and-ipad-web-applications-using-safari.