Error when accessing app from Teams Application : Code flow is not supported inside an iframe

[sudhirke]

New to teams application development, I followed the lab and able to load it in Teams WebApplication, however I am getting error when I load it in Microsoft Teams Client.

Error: {"errorCode":"redirect_in_iframe","errorMessage":"Code flow is not supported inside an iframe. Please ensure you are using MSAL.js in a top frame of the window if using the redirect APIs, or use the popup APIs. (window.parent !== window) => true","subError":"","name":"BrowserAuthError"}

I am sure this must be something very simple to resolve.