From 6862a9bbb872ebdc015a15a6ad70706e89123c43 Mon Sep 17 00:00:00 2001
From: Todd Martin <106564991+trmartin4@users.noreply.github.com>
Date: Wed, 6 Nov 2024 18:12:59 -0500
Subject: [PATCH] Add back provider keys on TwoFactorProviders response (#4991)

(cherry picked from commit b07df10335132831722b138fb4970dc624df1833)
---
 .../RequestValidators/TwoFactorAuthenticationValidator.cs     | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs b/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs
index 323d09c0e213..4cabcf4fa71e 100644
--- a/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs
+++ b/src/Identity/IdentityServer/RequestValidators/TwoFactorAuthenticationValidator.cs
@@ -121,8 +121,8 @@ public async Task<Dictionary<string, object>> BuildTwoFactorResultAsync(User use
 
         var twoFactorResultDict = new Dictionary<string, object>
         {
-            { "TwoFactorProviders", null },
-            { "TwoFactorProviders2", providers }, // backwards compatibility
+            { "TwoFactorProviders", providers.Keys }, // backwards compatibility
+            { "TwoFactorProviders2", providers },
         };
 
         // If we have email as a 2FA provider, we might need an SsoEmail2fa Session Token