I have successfully setup a Sandbox Environment for WeChat with a URL for my API Config and a JS API Secure Domain. These work as intended, allowing me to receive messages from Followers and calling APIs from Javascript pages.
However, when attempting to retrieve a user profile via the web using OAuth2 I encounter an 'Oops. Something went wrong!' message. If I use one of the supplied example links it works as intended.
http://admin.wechat.com/wiki/index.php?title=User_Profile_via_Web
Is it possible to test User Profile via Web in a Sandbox Environment?