Thanks for raising that point. Currently, it is not possible to use any custom protocols in Studio.
We will add this to our feature/bugfix list, you should see this fix in the upcoming releases of Wikitude Studio.
over 3 years ago
I am trying to use a custom URL Scheme in WStudio to intercept the call in my iOS app. When exported, the project prepends "http://" to the assigned url, like "url":"http://architectsdk://testMethod?parameter1=foo¶meter2=bar".
I have edited out the "http://" part but still the button when clicked opens a blank page and no invokedURL: method gets called in my app (Delegate set correctly).