Update articles/active-directory-b2c/tutorial-single-page-app.md

Co-Authored-By: Michele Martin <[email protected]>

Author: mmacy

articles/active-directory-b2c/tutorial-single-page-app.md

@@ -95,7 +95,7 @@ Now that you've obtained the sample, update the code with your Azure AD B2C tena
     const msalConfig = {
         auth: {
             clientId: "00000000-0000-0000-0000-000000000000", // Replace this value with your Application (client) ID
-            authority: "https://your-b2c-tenant.b2clogin.com//your-b2c-tenant.onmicrosoft.com/B2C_1_signupsignin1", // Update with your tenant and user flow names
+            authority: "https://your-b2c-tenant.b2clogin.com/your-b2c-tenant.onmicrosoft.com/B2C_1_signupsignin1", // Update with your tenant and user flow names
             validateAuthority: false
         },
         cache: {