duplicate client_id and client_uri for now

oauth3.implicit.js

@@ -337,7 +337,7 @@
           action: action
         //, response_type: 'confirmation'
         , client_id: opts.client_id || opts.client_uri
-        , client_uri: opts.client_uri
+        , client_uri: opts.client_uri || opts.client_id
         , state: state
         , debug: opts.debug
         };