Node.js Fail to connect to mongodb 3 from Heroku to Mongolab : SCRAM-SHA-1

Question

MongoLab recently updated the mongoDb version to 3.x. To try to reproduce the environment, i updated my local version of node.js to 4.x, mongodb to 3.x and mongoose to 3.8.

In my local environment i'm able to connect to mongoDb but in heroku i can't. The following error occurs :

fail to connect to mongodb for address mongodb://user:password@host:port/dbname

I suspect an older version of mongoose, or a bad connection way, but why it works on my local environment? Here how i connect node to mongoDb :

var uriString = process.env.MONGOLAB_URI || process.env.MONGOHQ_URL
mongoose.connect(uriString, function (err, res) {
    if (err) {
        console.log('fail to connect to mongodb for address ' +       uriString);
    } else {
        console.log('Connection to mongodb ok');
    }
});

Answer 1

I found the answer,

It looks like MongoDB 3.0 is supported in Mongoose 4.0.0: Like mongodb doc illustrate

So after upgraded mongoose to v4.x i'm now able to connect to mongoDB using SCRAM SHA 1 credentials.