From 89057003b32cebef3c59e14fa2fbebd03e91f6d0 Mon Sep 17 00:00:00 2001
From: Stephen Halter <halter73@gmail.com>
Date: Tue, 6 Jun 2017 16:02:36 -0700
Subject: [PATCH] Check IHttpMaxRequestBodySizeFeature.IsReadOnly (#379)

---
 src/Microsoft.AspNetCore.Server.IISIntegration/IISMiddleware.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Microsoft.AspNetCore.Server.IISIntegration/IISMiddleware.cs b/src/Microsoft.AspNetCore.Server.IISIntegration/IISMiddleware.cs
index 5729c9b0cb..2d5b86f82d 100644
--- a/src/Microsoft.AspNetCore.Server.IISIntegration/IISMiddleware.cs
+++ b/src/Microsoft.AspNetCore.Server.IISIntegration/IISMiddleware.cs
@@ -77,7 +77,7 @@ namespace Microsoft.AspNetCore.Server.IISIntegration
             }
 
             var bodySizeFeature = httpContext.Features.Get<IHttpMaxRequestBodySizeFeature>();
-            if (bodySizeFeature != null)
+            if (bodySizeFeature != null && !bodySizeFeature.IsReadOnly)
             {
                 // IIS already limits this, no need to do it twice.
                 bodySizeFeature.MaxRequestBodySize = null;