Only lower case the first letter of the property. If there is an error, no...

Only lower case the first letter of the property.  If there is an error, no request id, and there is only 1 request, then we know what to do.  Renaming the file for the EVentHandler.

ChromeDevTools/ChromeDevTools.csproj

@@ -64,7 +64,7 @@
     <Compile Include="CommandResponse.cs" />
     <Compile Include="CommandResponseAttribute.cs" />
     <Compile Include="CommandResponseFactory.cs" />
-    <Compile Include="CommandResponseHandler.cs" />
+    <Compile Include="EventHandler.cs" />
     <Compile Include="ErrorResponse.cs" />
     <Compile Include="Event.cs" />
     <Compile Include="EventAttribute.cs" />

ChromeDevTools/ChromeSession.cs

@@ -131,6 +131,18 @@ namespace ChromeDevTools
                 _responses.AddOrUpdate(response.Id, id => response, (key, value) => response);
                 requestMre.Set();
             }
+            else
+            {
+                // in the case of an error, we don't always get the request Id back :(
+                // if there is only one pending requests, we know what to do ... otherwise
+                if (1 == _requestWaitHandles.Count)
+                {
+                    var requestId = _requestWaitHandles.Keys.First();
+                    _requestWaitHandles.TryGetValue(requestId, out requestMre);
+                    _responses.AddOrUpdate(requestId, id => response, (key, value) => response);
+                    requestMre.Set();
+                }
+            }
         }
 
         private Task<ICommandResponse> SendCommand(Command command)

ChromeDevTools/Serialization/MessageContractResolver.cs

-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Newtonsoft.Json.Serialization;
+using Newtonsoft.Json.Serialization;
+using System;
 
 namespace ChromeDevTools.Serialization
 {
-    class MessageContractResolver : DefaultContractResolver
+    internal class MessageContractResolver : DefaultContractResolver
     {
         protected override string ResolvePropertyName(string propertyName)
         {
-            return propertyName.ToLower();
+            if (String.IsNullOrEmpty(propertyName))
+            {
+                return propertyName;
+            }
+            if (1 == propertyName.Length)
+            {
+                return Char.ToLowerInvariant(propertyName[0]).ToString();
+            }
+            return Char.ToLowerInvariant(propertyName[0]) + propertyName.Substring(1);
         }
     }
 }
\ No newline at end of file