Debugging UIWebViews and Websites on iOS

The Web Inspector from Safari on OS X is now available for websites and UIWebViews on iOS, and it has a sleek new interface. See how to connect the Web Inspector to your iPhone or iPad to develop, debug, profile, and optimize the web content on your site or in your native app. Get an overview of what the Web Inspector can do, discover new features, and learn best practices to utilize this set of tools efficiently.

WWDC 2012 - Session 600 - iOS, macOS