diff --git a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml.cs b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml.cs
index 737bc2fe36..4898baf215 100644
--- a/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml.cs
+++ b/modules/docs/src/Volo.Docs.Web/Pages/Documents/Project/Index.cshtml.cs
@@ -6,6 +6,7 @@ using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using System.Web;
+using Microsoft.AspNetCore.Http.Extensions;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.Rendering;
 using Microsoft.Extensions.Localization;
@@ -108,6 +109,12 @@ namespace Volo.Docs.Pages.Documents.Project
 
         public virtual async Task<IActionResult> OnGetAsync()
         {
+            var displayUrl = Request.GetDisplayUrl();
+            var decodedUrl = HttpUtility.UrlDecode(displayUrl);
+            if (decodedUrl != displayUrl)
+            {
+                return Redirect(decodedUrl);
+            }
             try
             {
                 return await SetPageAsync();