docs.azure.cn
Resilience through developer best practices using Azure AD B2C
6/3/2025Updated 3/4/2026
Excerpt
Effective May 1, 2025, Azure AD B2C will no longer be available to purchase for new customers. ... Developers can adopt latest releases of MSAL and stay up to date. See how to increase resilience of authentication and authorization in your applications. Where possible, avoid implementing your own authentication stack. Instead, use well-established libraries. … Migrate your application from MSAL.js 1.x to MSAL.js 2.x to realize the resiliency of web applications. The implicit flow doesn't result in a refresh token. The SPA can use a hidden `iframe` to perform new token requests against the authorization endpoint if the browser has an active session with the Azure AD B2C.