possibly fixed

debug output left

lib-app/facebook-oauth.js

@@ -25,7 +25,7 @@ fb.OAuthInterface.prototype.graphApiPost = function (path, args) {
 
 fb.OAuthInterface.prototype.tokenString = function () {
   var token = this._token || (this._token = this.obtainToken());
-  return token ? "?access_token="+token : "";
+  return token ? "?access_token="+encodeURIComponent(token) : "";
 };
 
 fb.free = new fb.OAuthInterface;