title: Safari view controller
body: <p>I am new in iOS app development. Currently, I am working on a project which requires the interaction between the app and webpage. I know I can use safari view controller to load a web page within the app, and use done button at the right up corner of the webpage to back to the app. But I want to back to the app by clicking a link in the webpage instead of done button. I could not find any solution for this. Can anyone help? Many thanks in advance.</p>