This topic is just continuation of our previous one that was closed while we were on a winter break. Original board can be found here Cordova Phonegap login authentication link problem
after that communication is continued here Auth0 Support Center and my answer for developers investigating the code follows:
Thanks for investigating the issue but If you look into README.md on that repository I’ve put together very simple few instructions on what’s important in code. Line 93 you’re referring to is irrelevant and is used to login to our platform, but I left it there just bcs I didn’t want to break something. What is relevant (also based on README.md) are lines 128 (auth0 facebook handler) and 135 (auth0 twitter handler).