handleRedirectPromise is returning null response

[satyamkatiyar]

Hi,

We are using office js outlook native add-in and trying to authenticate azure ad using msal.
we are trying to authenticate azure ad using loginRedirect (since loginPopup is not support in outlook native app).

msalInstance
  .handleRedirectPromise()
  .then((response) => {
    // Handle redirect response
    console.log("****  Handle redirect response ****");
    if (response !== null) {
console.log(response.account.homeAccountId);
// Display signed-in user content, call API, etc.
} else {
// In case multiple accounts exist, you can select
const currentAccounts = msalInstance.getAllAccounts();

if (currentAccounts.length === 0) {
  // no accounts signed-in, attempt to sign a user in
  console.log(currentAccounts.length); //<----------------------------- this comes in console.. no response and currentaccount is 0
  //msalInstance.loginRedirect(loginRequest);
} else if (currentAccounts.length > 1) {
  // Add choose account code here
  console.log(currentAccounts.length);
} else if (currentAccounts.length === 1) {
  console.log(currentAccounts[0].homeAccountId);
}

}
  })
  .catch((error) => {
    // Handle redirect error
    console.log("****  Handle redirect error ****");
  });

up redirect and entering email id - in outlook task pane we see below message - "Taking you to your organization's sign-in page"

And it opens up in browser window, where authentication is successful. however in outlook task pane it doesn't refresh.

PLEASE HELP.