Wt

I'm using wt-3.3.6 on ubuntu 16.04 server. Trying to use standard facebook oauth functionality resulted in Wt::Json::TypeException. It turned out that Wt's FacebookService uses the following request url - https://graph.facebook.com/me?access_token=xxx In this case the returned response contains only user's name and id parameters. At the same time FacebookService class requires email parameter, otherwise the exception is thrown. A quick workaround is to replace the request url by https://graph.facebook.com/me?fields=name,id,email&access_token=xxx
to explicitly ask facebook to provide required parameters.