From 12319180445520ef7bc066f71aba2cc193f55c6f Mon Sep 17 00:00:00 2001
From: Jeff Tian <jeff.tian@outlook.com>
Date: Fri, 1 Dec 2023 11:05:04 +0800
Subject: [PATCH] fix: add OnRedirectToIdentityProvider

---
 hosts/main/HostingExtensions.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hosts/main/HostingExtensions.cs b/hosts/main/HostingExtensions.cs
index 55f07b13c..b4f4da048 100644
--- a/hosts/main/HostingExtensions.cs
+++ b/hosts/main/HostingExtensions.cs
@@ -157,6 +157,11 @@ private static void AddExternalIdentityProviders(this WebApplicationBuilder buil
                     NameClaimType = "name",
                     RoleClaimType = "role"
                 };
+                options.Events.OnRedirectToIdentityProvider = ctx =>
+                {
+                    ctx.ProtocolMessage.LoginHint = (string)ctx.Properties.Parameters["login_hint"];
+                    return Task.CompletedTask;
+                };
             });
         }