diff --git a/Mindscape.Raygun4Net.WebApi/RaygunWebApiClient.cs b/Mindscape.Raygun4Net.WebApi/RaygunWebApiClient.cs
index 4d9362cf..0aa3820a 100644
--- a/Mindscape.Raygun4Net.WebApi/RaygunWebApiClient.cs
+++ b/Mindscape.Raygun4Net.WebApi/RaygunWebApiClient.cs
@@ -133,8 +133,7 @@ private static void AttachInternal(HttpConfiguration config, Func<HttpRequestMes
         applicationVersion = applicationVersionFromAttach;
       }
 
-      var owinAssembly = AppDomain.CurrentDomain.GetAssemblies().FirstOrDefault(a => a.FullName.StartsWith("Owin"));
-      if (owinAssembly == null)
+      if (RaygunSettings.Settings.IsRawDataIgnored == false)
       {
         config.MessageHandlers.Add(new RaygunWebApiDelegatingHandler());
       }
diff --git a/Mindscape.Raygun4Net.WebApi/RaygunWebApiDelegatingHandler.cs b/Mindscape.Raygun4Net.WebApi/RaygunWebApiDelegatingHandler.cs
index 6e4f9378..cfd38bd6 100644
--- a/Mindscape.Raygun4Net.WebApi/RaygunWebApiDelegatingHandler.cs
+++ b/Mindscape.Raygun4Net.WebApi/RaygunWebApiDelegatingHandler.cs
@@ -1,5 +1,4 @@
-using System.ComponentModel;
-using System.Linq;
+using System.Linq;
 using System.Net.Http;
 using System.Text;
 
@@ -11,21 +10,13 @@ public class RaygunWebApiDelegatingHandler : DelegatingHandler
 
     protected override async System.Threading.Tasks.Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, System.Threading.CancellationToken cancellationToken)
     {
-      var stream = await request.Content.ReadAsStreamAsync();
-      if (stream != null && stream.CanSeek)
+      // ReadAsByteArrayAsync is always readable as it calls LoadIntoBufferAsync internally.
+      var bytes = await request.Content.ReadAsByteArrayAsync();
+      if (bytes.Length > 0)
       {
-        var lengthToRead = (int)(stream.Length < 4096 ? stream.Length : 4096);
-        var buffer = new byte[lengthToRead];
-
-        await stream.ReadAsync(buffer, 0, lengthToRead, cancellationToken);
-
-        var body = Encoding.UTF8.GetString(buffer);
-        if (!string.IsNullOrEmpty(body))
-        {
-          request.Properties[RequestBodyKey] = body;
-        }
-
-        stream.Seek(0, System.IO.SeekOrigin.Begin);
+        // Only take first 4096 bytes
+        var bytesToSend = bytes.Take(4096).ToArray();
+        request.Properties[RequestBodyKey] = Encoding.UTF8.GetString(bytesToSend);
       }
 
       return await base.SendAsync(request, cancellationToken);