diff --git a/CHANGELOG.md b/CHANGELOG.md
index cec0a9f..8c75e6e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,11 @@
 All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 
+## [3.1.1] - 2019-07-03
+### Fixed
+- customBlockUrl redirect flow
+- customBlockUrl whitelisting
+
 ## [3.1.0] - 2019-06-05
 ### Added
 - Send telemetry on demand by header
diff --git a/PerimeterXModule/Properties/AssemblyInfo.cs b/PerimeterXModule/Properties/AssemblyInfo.cs
index 7c01819..05a4303 100644
--- a/PerimeterXModule/Properties/AssemblyInfo.cs
+++ b/PerimeterXModule/Properties/AssemblyInfo.cs
@@ -23,5 +23,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("3.1.0")]
-[assembly: AssemblyFileVersion("3.1.0")]
+[assembly: AssemblyVersion("3.1.1")]
+[assembly: AssemblyFileVersion("3.1.1")]
diff --git a/PerimeterXModule/PxModule.cs b/PerimeterXModule/PxModule.cs
index 0b7da60..d5604ff 100644
--- a/PerimeterXModule/PxModule.cs
+++ b/PerimeterXModule/PxModule.cs
@@ -68,6 +68,7 @@ public class PxModule : IHttpModule
 		private readonly StringCollection useragentsWhitelist;
 		private readonly StringCollection enforceSpecificRoutes;
 		private readonly string cookieKey;
+		private readonly string customBlockUrl;
 		private readonly byte[] cookieKeyBytes;
 		private readonly string osVersion;
 		private string nodeName;
@@ -219,7 +220,7 @@ private void Application_BeginRequest(object source, EventArgs e)
 						BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.IgnoreCase | BindingFlags.FlattenHierarchy);
 					// Remove the ReadOnly property
 					ro.SetValue(headers, false, null);
-					// Invoke the protected InvalidateCachedArrays method 
+					// Invoke the protected InvalidateCachedArrays method
 					hdr.InvokeMember("InvalidateCachedArrays",
 						BindingFlags.InvokeMethod | BindingFlags.NonPublic | BindingFlags.Instance,
 						null, headers, null);
@@ -442,13 +443,19 @@ private bool IsFilteredRequest(HttpContext context)
 				return true;
 			}
 
-			// whitelist routes prefix
 			var url = context.Request.Url.AbsolutePath;
+
+			// custom block url check
+			if (customBlockUrl != null && url == customBlockUrl) {
+				return true;
+			}
+
+			// whitelist routes prefix
 			if (routesWhitelist != null)
 			{
 				foreach (var prefix in routesWhitelist)
 				{
-					if (url.StartsWith(prefix) || url == pxContext.CustomBlockUrl)
+					if (url.StartsWith(prefix))
 					{
 						return true;
 					}
@@ -539,7 +546,7 @@ private void HandleVerification(HttpApplication application)
 				PxLoggingUtils.LogDebug(string.Format("Invalid request to {0}", application.Context.Request.RawUrl));
 				PostBlockActivity(pxContext);
 			}
-		
+
 			SetPxhdAndVid(pxContext);
 			// If implemented, run the customVerificationHandler.
 			if (customVerificationHandlerInstance != null)
@@ -565,7 +572,7 @@ private static void SetPxhdAndVid(PxContext pxContext)
 		}
 
 		/// <summary>
-		/// Uses reflection to check whether an IVerificationHandler was implemented by the customer. 
+		/// Uses reflection to check whether an IVerificationHandler was implemented by the customer.
 		/// </summary>
 		/// <returns>If found, returns the IVerificationHandler class instance. Otherwise, returns null.</returns>
 		private static IVerificationHandler GetCustomVerificationHandler(string customHandlerName)