Application.OpenURL on iOs ...Wha?

Hello! How do I open the browser from with in app

(or on the web for that matter)

I've researched Application.OpenURL Not even giving me the simples Debug and I have the Collider set to Convex & Trigger

C#:

     public string url = "http://images.earthcam.com";
 
     void onMouseUp(){
         Debug.Log ("UP");
         Application.OpenURL (url);
         Debug.Log ("LOAD");
     }

THANKS!