From dc968bc1bfaef13a5fd18c644172f4c8f579b5fd Mon Sep 17 00:00:00 2001
From: Ajay Bhargav Baaskaran <ajbaaska@microsoft.com>
Date: Thu, 31 Dec 2015 11:20:06 -0800
Subject: [PATCH] [Fixes #3779] Using explicit StringComparison in startswith

---
 src/Microsoft.AspNet.Mvc.Core/Formatters/FormatterMappings.cs | 2 +-
 src/Microsoft.AspNet.Mvc.Core/VirtualFileResult.cs            | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Microsoft.AspNet.Mvc.Core/Formatters/FormatterMappings.cs b/src/Microsoft.AspNet.Mvc.Core/Formatters/FormatterMappings.cs
index d72814bd51..e7b0b70ac5 100644
--- a/src/Microsoft.AspNet.Mvc.Core/Formatters/FormatterMappings.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/Formatters/FormatterMappings.cs
@@ -90,7 +90,7 @@ namespace Microsoft.AspNet.Mvc.Formatters
                 throw new ArgumentException(Resources.ArgumentCannotBeNullOrEmpty, nameof(format));
             }
 
-            if (format.StartsWith("."))
+            if (format.StartsWith(".", StringComparison.Ordinal))
             {
                 if (format == ".")
                 {
diff --git a/src/Microsoft.AspNet.Mvc.Core/VirtualFileResult.cs b/src/Microsoft.AspNet.Mvc.Core/VirtualFileResult.cs
index 5dd5c302a5..96a708c257 100644
--- a/src/Microsoft.AspNet.Mvc.Core/VirtualFileResult.cs
+++ b/src/Microsoft.AspNet.Mvc.Core/VirtualFileResult.cs
@@ -97,7 +97,7 @@ namespace Microsoft.AspNet.Mvc
             var fileProvider = GetFileProvider(response.HttpContext.RequestServices);
 
             var normalizedPath = FileName;
-            if (normalizedPath.StartsWith("~"))
+            if (normalizedPath.StartsWith("~", StringComparison.Ordinal))
             {
                 normalizedPath = normalizedPath.Substring(1);
             }