Auth.currentSession keeps calling https://cognito-idp.<region>.amazonaws.com/

Describe the bug Whenever Auth.currentSession() is called, it will do a request to https://cognito-idp.us-east-1.amazonaws.com/ (AWSCognitoIdentityProviderService.GetUser). I think session should be cached until it expires.

To Reproduce Steps to reproduce the behavior: Call:

let session = await Auth.currentSession(); 

Check network tab in (say) Chrome and see new request to https://cognito-idp.us-east-1.amazonaws.com/ Headers:

Content-Type: application/x-amz-json-1.1
DNT: 1
Origin: http://localhost:3000
Referer: http://localhost:3000/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36
X-Amz-Target: AWSCognitoIdentityProviderService.GetUser
X-Amz-User-Agent: aws-amplify/0.1.x js

Expected behavior Auth.currentSession() returns cached version until it has expired. Token info does get stored in local storage.

Additional context aws-amplify:1.14 aws-amplify-react: 2.0.5

config:

Amplify.configure({
    Auth: {
        mandatorySignIn: true,
        identityPoolId: xxx,
        region: xxx,
        userPoolId: xxx,
        userPoolWebClientId: xxx,

    },
    Analytics: {
        disabled: true
    }
});

[lgrapenthin]

@powerful23 Please consider filing this as a bug. The implementation leaks HTTP requests, which is obviously not intended. IME it is not a feature to have unintended behavior removed.

[powerful23]

@kjellski hey we just had an internal discussion around this issue. We will take an action to resolve this in the next two days.