diff --git a/common/ASC.Migration/Startup.cs b/common/ASC.Migration/Startup.cs
index a6c364a5e4..e7a96ec86d 100644
--- a/common/ASC.Migration/Startup.cs
+++ b/common/ASC.Migration/Startup.cs
@@ -42,15 +42,4 @@ public class Startup : BaseStartup
 
         base.ConfigureServices(services);
     }
-
-    public override void Configure(IApplicationBuilder app, IWebHostEnvironment env)
-    {
-        app.UseCors(builder =>
-            builder
-                .AllowAnyOrigin()
-                .AllowAnyHeader()
-                .AllowAnyMethod());
-
-        base.Configure(app, env);
-    }
 }
diff --git a/web/ASC.Web.Core/CookiesManager.cs b/web/ASC.Web.Core/CookiesManager.cs
index bdd11c88b3..5f60eeaab2 100644
--- a/web/ASC.Web.Core/CookiesManager.cs
+++ b/web/ASC.Web.Core/CookiesManager.cs
@@ -52,7 +52,6 @@ public class CookiesManager
     private readonly CoreBaseSettings _coreBaseSettings;
     private readonly DbLoginEventsManager _dbLoginEventsManager;
     private readonly MessageService _messageService;
-    private readonly ILogger<CookiesManager> _logger;
 
     public CookiesManager(
         IHttpContextAccessor httpContextAccessor,
@@ -62,8 +61,7 @@ public class CookiesManager
         TenantManager tenantManager,
         CoreBaseSettings coreBaseSettings,
         DbLoginEventsManager dbLoginEventsManager,
-        MessageService messageService,
-        ILogger<CookiesManager> logger)
+        MessageService messageService)
     {
         _httpContextAccessor = httpContextAccessor;
         _userManager = userManager;
@@ -73,7 +71,6 @@ public class CookiesManager
         _coreBaseSettings = coreBaseSettings;
         _dbLoginEventsManager = dbLoginEventsManager;
         _messageService = messageService;
-        _logger = logger;
     }
 
     public void SetCookies(CookiesType type, string value, bool session = false)
@@ -296,7 +293,9 @@ public class CookiesManager
             if (!string.IsNullOrEmpty(origin))
             {
                 var originUri = new Uri(origin);
-                result = $"{result}_{originUri.Host.Replace('.', '_')}";
+                var host = originUri.Host;
+                var alias = host.Substring(0, host.Length - _coreBaseSettings.Basedomain.Length - 1);
+                result = $"{result}_{alias}";
             }
         }
 
@@ -309,23 +308,12 @@ public class CookiesManager
         var origin = _httpContextAccessor.HttpContext.Request.Headers[HeaderNames.Origin].FirstOrDefault();
         var baseDomain = _coreBaseSettings.Basedomain;
 
-        foreach (var h in _httpContextAccessor.HttpContext.Request.Headers)
-        {
-            _logger.Debug($"{h.Key}:{h.Value.FirstOrDefault()}");
-        }
-
         try
         {
-            _logger.Debug($"baseDomain:{baseDomain}");
-            _logger.Debug($"origin:{origin}");
-
             if (!string.IsNullOrEmpty(origin))
             {
                 var originUri = new Uri(origin);
 
-                _logger.Debug($"originHost:{originUri.Host}");
-                _logger.Debug($"urlRewriter:{urlRewriter.Host}");
-
                 if (!string.IsNullOrEmpty(baseDomain) &&
                 urlRewriter.Host != originUri.Host &&
                 originUri.Host.EndsWith(baseDomain))
diff --git a/web/ASC.Web.Studio/Startup.cs b/web/ASC.Web.Studio/Startup.cs
index c61e5d0a2a..ebb59d2a9c 100644
--- a/web/ASC.Web.Studio/Startup.cs
+++ b/web/ASC.Web.Studio/Startup.cs
@@ -41,12 +41,6 @@ public class Startup : BaseStartup
         });
 
         app.UseRouting();
-
-        app.UseCors(builder =>
-            builder
-                .AllowAnyOrigin()
-                .AllowAnyHeader()
-                .AllowAnyMethod());
 
         app.UseAuthentication();
 
@@ -71,9 +65,7 @@ public class Startup : BaseStartup
     }
 
     public override void ConfigureServices(IServiceCollection services)
-    {
-        services.AddCors();
-
+    {
         base.ConfigureServices(services);
 
         services.AddMemoryCache();