Now seems a good time to discuss how the Sync feature on MyMadden works. 

First a friend of MyMadden discovered the URLs and parameters required for it to all work. Massive thanks to him for that. It was something I had always wanted to do but never did for one reason or another. 

When you setup the Sync feature, MyMadden never has access to your EA password. When you login to EA and it sends you to the 127.0.0.1 url, it creates a code that is at then of that url. The code is then used to generate an access token that lets MyMadden retrieve your league's data just as if it were the Madden Companion App. The access token is stored and only ever used for fetching league data. 

When you go to setup the Sync feature, this is laid out in a disclaimer because I want to be transparent with you. And if allowing MyMadden to store an access token doesn't feel comfortable to you, then don't do it; wait for EA to update their app. 

MyMadden is here to help your league be the best league it can be; nothing more.