AcquireTokenSilent Does not create any iframe.

Core Library

MSAL.js v2 (@azure/msal-browser)

Core Library Version

2.16.1

Wrapper Library

MSAL React (@azure/msal-react)

Wrapper Library Version

1.0.1

Description

Prior to upgrading to V2 we were logging users who already have logged in some other Microsoft website silently by creating an iframe and triggering a signin by redirect flow in the iframe. This helped us in getting users silently sign in.

As per the docs the acquuireTokenSilently is supposed to do exactly this however once we upgraded to v2 we see a massive drop in users who are signed in.

What are we missing here that we are not seeing silent sign on?

MSAL Configuration

auth: {
                clientId: // client id,
                authority: "https://login.microsoftonline.com/common/",
                redirectUri: // our homepage,
            },
            cache: {
                cacheLocation: "localStorage",
            },

Relevant Code Snippets

if (this.props.msalContext.instance.getAllAccounts()[0]) {
            this.props.msalContext.instance
                .acquireTokenSilent({
                    account: this.props.msalContext.instance.getAllAccounts()[0],
                    ...loginRequest,
                })
                .then(token => //use token)
                .catch(err => {
log telemetry 
                });
        }

Identity Provider

Azure AD / MSA

Source

Internal (Microsoft)

[Shivam60]

[Shivam60]

It appears majority of our users are logged in via single account only. Thus using redirect within an iframe has worked for us ensuring a higher signed users and an experience where users doesnt navigate away from the site for login if there exisits an active session.

I ll wait for @pkanher617 's thoughts and ETA on the above. It looks we ll have to revert back to our iframe code 😦