Teams blocks a teams tab app to pop up a window for AAD log in

Josie Everson 26 Reputation points

Hi there,

We have a product that is embedded into Teams client as a tab app. This app requires to pop up a window for AAD log in. Currently this window is blocked by Teams client, maybe because tab app runs in a i-frame. I have 2 questions:

  • Is that a configuration in javascript/api allow us to unblock this window pop up?
  • Is that possible we can retrieve the AAD token/teams access token from the tab app somehow?

Any help is appreciated!


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Accepted answer
  1. Sayali-MSFT 2,266 Reputation points Microsoft Vendor

    @Josie Everson - Teams app doesn't recognize sub iframes. Therefore, it'll not load if there is an iframe within the tab app.

    You can choose any third-party OAuth provider, such as LinkedIn, Google, and others. The process to enable authentication for these providers is similar to using Azure AD as a third-party OAuth provider.

    Azure AD, like most identity providers, doesn't allow its content to be placed in an iframe. This means that you'll need to add a pop-up page to host the identity provider. In the following example, this page is /tab-auth/simple-start. Use the authentication.authenticate() function of the Microsoft Teams client SDK to launch this page when the button is selected.

    import { authentication } from "@microsoft/teams-js";  
        url: window.location.origin + "/tab/simple-start-v2",  
        width: 600,  
        height: 535})  
    .then((result) => {  
        console.log("Login succeeded: " + result);  
        let data = localStorage.getItem(result);  
        let tokenResult = JSON.parse(data);  
    .catch((reason) => {  
        console.log("Login failed: " + reason);  

    Here is sample that contains a static tab that requests an access token for Microsoft Graph, and shows the current user's basic profile information from Azure AD.

    Reference document-



    If the response is helpful, please click "Accept Answer" and upvote it. You can share your feedback via Microsoft Teams Developer Feedback link

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