diff --git a/DotNetCasClient/CasAuthentication.cs b/DotNetCasClient/CasAuthentication.cs
index 4ff6d26..e4f9188 100644
--- a/DotNetCasClient/CasAuthentication.cs
+++ b/DotNetCasClient/CasAuthentication.cs
@@ -241,10 +241,10 @@ public static void Initialize()
                         configLogger.Info("requireCasForMissingContentTypes = " + requireCasForMissingContentTypes);
 
                         requireCasForContentTypes = CasClientConfig.RequireCasForContentTypes;
-                        configLogger.Info("requireCasForContentTypes = " + requireCasForContentTypes);
+                        configLogger.Info("requireCasForContentTypes = " + string.Join(",", requireCasForContentTypes));
 
-                        bypassCasForHandlers = CasClientConfig.BypassCasForHandlers;
-                        configLogger.Info("bypassCasForHandlers = " + bypassCasForHandlers);
+                        bypassCasForHandlers = CasClientConfig.BypassCasForHandlers;
+                        configLogger.Info("bypassCasForHandlers = " + string.Join(",", bypassCasForHandlers));
 
                         if (String.Compare(ticketValidatorName, CasClientConfiguration.CAS10_TICKET_VALIDATOR_NAME, true) == 0)
                         {
@@ -770,8 +770,8 @@ internal static void ProcessTicketValidation()
             CasAuthenticationTicket casTicket;
             ICasPrincipal principal;
 
-            string ticket = request[TicketValidator.ArtifactParameterName];
-            
+            string ticket = request[TicketValidator.ArtifactParameterName];
+ 
             try
             {
                 // Attempt to authenticate the ticket and resolve to an ICasPrincipal
diff --git a/DotNetCasClient/CasAuthenticationModule.cs b/DotNetCasClient/CasAuthenticationModule.cs
index 19ba3e5..0deabad 100644
--- a/DotNetCasClient/CasAuthenticationModule.cs
+++ b/DotNetCasClient/CasAuthenticationModule.cs
@@ -17,7 +17,7 @@
  * under the License.
  */
 
-using System;
+using System;
 using System.Web;
 using DotNetCasClient.Logging;
 using DotNetCasClient.Utils;
@@ -33,26 +33,26 @@ namespace DotNetCasClient
     /// <author>Catherine D. Winfrey</author>
     public sealed class CasAuthenticationModule : IHttpModule
     {
-        private static readonly Logger logger = new Logger(Category.HttpModule);
+        private static readonly Logger logger = new Logger(Category.HttpModule);
 
         /// <summary>
         /// Performs initializations / startup functionality when an instance of this HttpModule
         /// is being created.
         /// </summary>
         /// <param name="context">the current HttpApplication</param>        
-        public void Init(HttpApplication context)
-        {
-            // Register our event handlers.  These are fired on every HttpRequest.
+        public void Init(HttpApplication context)
+        {
+            // Register our event handlers.  These are fired on every HttpRequest.
             context.BeginRequest += OnBeginRequest;
             context.AuthenticateRequest += OnAuthenticateRequest;
-            context.EndRequest += OnEndRequest;
+            context.EndRequest += OnEndRequest;
         }
 
         /// <summary>
         /// Performs cleanup when an instance of this HttpModule is being destroyed.
         /// </summary>
         public void Dispose()
-        {
+        {
         }
 
         /// <summary>
@@ -68,15 +68,21 @@ public void Dispose()
         /// </summary>
         /// <param name="sender">The HttpApplication that sent the request</param>
         /// <param name="e">Not used</param>
-        private static void OnBeginRequest(object sender, EventArgs e)
-        {
+        private static void OnBeginRequest(object sender, EventArgs e)
+        {
+            // Validate the ticket coming back from the CAS server
+            if (!RequestEvaluator.GetRequestIsAppropriateForCasAuthentication())
+            {
+                logger.Debug("BeginRequest bypassed for " + HttpContext.Current.Request.RawUrl);
+                return;
+            }
             CasAuthentication.Initialize();
 
             HttpContext context = HttpContext.Current;
-            HttpRequest request = context.Request;
+            HttpRequest request = context.Request;
+         
+            logger.Debug("Starting BeginRequest for " + request.RawUrl);
 
-            logger.Debug("Starting BeginRequest for " + request.RawUrl);
-            
             // Cleanup expired ServiceTickets in the ServiceTicketManager
             if (CasAuthentication.ServiceTicketManager != null)
             {
@@ -103,8 +109,8 @@ private static void OnBeginRequest(object sender, EventArgs e)
                 logger.Info("Processing Proxy Callback request");
                 CasAuthentication.ProcessProxyCallbackRequest();
                 return;
-            }
-
+            }
+
             logger.Debug("Ending BeginRequest for " + request.RawUrl);
         }
 
@@ -126,17 +132,16 @@ private static void OnBeginRequest(object sender, EventArgs e)
         /// <param name="sender">The HttpApplication that sent the request</param>
         /// <param name="e">Not used</param>
         private static void OnAuthenticateRequest(object sender, EventArgs e)
-        {
-            HttpContext context = HttpContext.Current;
-            HttpRequest request = context.Request;
-
-            // Validate the ticket coming back from the CAS server
+        {
             if (!RequestEvaluator.GetRequestIsAppropriateForCasAuthentication())
-            {
-                logger.Debug("AuthenticateRequest bypassed for " + request.RawUrl);
+            {
+                logger.Debug("AuthenticateRequest bypassed for " + HttpContext.Current.Request.RawUrl);
                 return;
-            }
-
+            }
+
+            HttpContext context = HttpContext.Current;
+            HttpRequest request = context.Request;
+
             // Validate the ticket coming back from the CAS server
             if (RequestEvaluator.GetRequestHasCasTicket())
             {
@@ -145,7 +150,7 @@ private static void OnAuthenticateRequest(object sender, EventArgs e)
             }
 
             logger.Debug("Starting AuthenticateRequest for " + request.RawUrl);
-            CasAuthentication.ProcessRequestAuthentication();
+            CasAuthentication.ProcessRequestAuthentication();
             logger.Debug("Ending AuthenticateRequest for " + request.RawUrl);
         }
 
@@ -177,13 +182,17 @@ private static void OnAuthenticateRequest(object sender, EventArgs e)
         /// <param name="sender">The HttpApplication that sent the request</param>
         /// <param name="e">Not used</param>
         private static void OnEndRequest(object sender, EventArgs e)
-        {
+        {
+            if (!RequestEvaluator.GetRequestIsAppropriateForCasAuthentication())
+            {
+                logger.Debug("EndRequest bypassed for " + HttpContext.Current.Request.RawUrl);
+                return;
+            }
+
             HttpContext context = HttpContext.Current;
             HttpRequest request = context.Request;
 
-            if (RequestEvaluator.GetRequestIsAppropriateForCasAuthentication())
-            {
-                logger.Debug("Starting EndRequest for " + request.RawUrl);
+                logger.Debug("Starting EndRequest for " + request.RawUrl);
 
                 if (RequestEvaluator.GetRequestRequiresGateway())
                 {
@@ -219,14 +228,8 @@ private static void OnEndRequest(object sender, EventArgs e)
                 {
                     logger.Info("  Redirecting to CAS Login Page");
                     CasAuthentication.RedirectToLoginPage();
-                }
-
+                }
                 logger.Debug("Ending EndRequest for " + request.RawUrl);
-            }
-            else
-            {
-                logger.Debug("No EndRequest processing for " + request.RawUrl);
-            }
         }
    }
 }
\ No newline at end of file
diff --git a/DotNetCasClient/Configuration/CasClientConfiguration.cs b/DotNetCasClient/Configuration/CasClientConfiguration.cs
index 9939ba6..a1abb1a 100644
--- a/DotNetCasClient/Configuration/CasClientConfiguration.cs
+++ b/DotNetCasClient/Configuration/CasClientConfiguration.cs
@@ -254,11 +254,16 @@ public bool RequireCasForMissingContentTypes
         /// <summary>
         /// Content-types for which CAS authentication will be required
         /// </summary>
-        [ConfigurationProperty(REQUIRE_CAS_FOR_CONTENT_TYPES_PARAMETER_NAME, IsRequired = false, DefaultValue = new[] { "text/plain", "text/html" })]
-        public string[] RequireCasForContentTypes { 
+        [ConfigurationProperty(REQUIRE_CAS_FOR_CONTENT_TYPES_PARAMETER_NAME, IsRequired = false,DefaultValue = "text/plain,text/html")]
+        private string _RequireCasForContentTypes
+        {
+            get { return this[REQUIRE_CAS_FOR_CONTENT_TYPES_PARAMETER_NAME] as string; }
+        }
+
+        public string[] RequireCasForContentTypes {
             get
             {
-                string[] types = ((this[REQUIRE_CAS_FOR_CONTENT_TYPES_PARAMETER_NAME] as string) ?? "text/plain,text/html").Split(',');
+                string[] types = _RequireCasForContentTypes.Split(',');
                 for (int i = 0; i < types.Length; i++)
                 {
                     string type = types[i];
@@ -274,12 +279,20 @@ public string[] RequireCasForContentTypes {
         /// <summary>
         /// Handlers for which CAS authentication will be bypassed.
         /// </summary>
-        [ConfigurationProperty(BYPASS_CAS_FOR_HANDLERS_PARAMETER_NAME, IsRequired = false, DefaultValue = new[] { "trace.axd", "webresource.axd" })]
+        [ConfigurationProperty(BYPASS_CAS_FOR_HANDLERS_PARAMETER_NAME, IsRequired = false, DefaultValue = "trace.axd,webresource.axd")]
+        private string _BypassCasForHandlers
+        {
+            get { return this[BYPASS_CAS_FOR_HANDLERS_PARAMETER_NAME] as string; }
+        }
+
+        /// <summary>
+        /// Handlers for which CAS authentication will be bypassed.
+        /// </summary>
         public string[] BypassCasForHandlers
         {
             get
             {
-                string[] types = ((this[REQUIRE_CAS_FOR_CONTENT_TYPES_PARAMETER_NAME] as string) ?? "trace.axd,webresource.axd").Split(',');
+                string[] types = _BypassCasForHandlers.Split(',');
                 for (int i = 0; i < types.Length; i++)
                 {
                     string type = types[i];
diff --git a/DotNetCasClient/Utils/RequestEvaluator.cs b/DotNetCasClient/Utils/RequestEvaluator.cs
index 844aff7..c135280 100644
--- a/DotNetCasClient/Utils/RequestEvaluator.cs
+++ b/DotNetCasClient/Utils/RequestEvaluator.cs
@@ -333,8 +333,6 @@ private static bool GetRequestIsCookiesRequiredUrl()
         /// <returns>True if the request is appropriate for CAS authentication, otherwise False</returns>
         internal static bool GetRequestIsAppropriateForCasAuthentication()
         {
-            CasAuthentication.Initialize();
-
             HttpContext context = HttpContext.Current;
             HttpRequest request = context.Request;
             HttpResponse response = context.Response;