msalConfig auth authority URL

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#142 opened on Dec 26, 2025 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 2/5
Estimated time: 1-3 hours
Newbie friendliness: 45/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: javascript
Domain: authentication, frontend

Research direction

Start with ms-identity-ciam-javascript-tutorial\1-Authentication\0-sign-in-vanillajs\App\public\authConfig.js and reproduce the sign-in flow with each authority URL shown in the issue. Compare the resulting behavior and confirm the expected authority format for this tutorial configuration.

Written by the indexing model from the issue text.

Description

It is not working if the authority URL in authConfig.js (ms-identity-ciam-javascript-tutorial\1-Authentication\0-sign-in-vanillajs\App\public\authConfig.js) is https://<tenantId>.ciamlogin.com/, but it works with https://<tenantId>.ciamlogin.com/<tenantId>/v2.0

const msalConfig = {
    auth: {
        clientId: 'Enter_the_Application_Id_Here', // This is the ONLY mandatory field that you need to supply.
        authority: 'https://Enter_the_Tenant_Subdomain_Here.ciamlogin.com/Enter_the_Tenant_Subdomain_Here/v2.0', // Replace the placeholders with your tenant subdomain        
        redirectUri: 'http://localhost:3000/redirect', // You must register this URI on Microsoft Entra admin center/App Registration. Defaults to window.location.href e.g. http://localhost:3000/
        navigateToLoginRequestUrl: true, // If "true", will navigate back to the original request location before processing the auth code response.
    },
...
}

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