diff --git a/src/React.AspNet/AspNetFileSystem.cs b/src/React.AspNet/AspNetFileSystem.cs
index 7e0e64f2d..4781a4fa5 100644
--- a/src/React.AspNet/AspNetFileSystem.cs
+++ b/src/React.AspNet/AspNetFileSystem.cs
@@ -36,8 +36,12 @@ public AspNetFileSystem(IHostingEnvironment hostingEnv)
 		/// <returns>Full path of the file</returns>
 		public override string MapPath(string relativePath)
 		{
-			relativePath = relativePath.TrimStart('~').TrimStart('/');
-			return Path.Combine(_hostingEnv.WebRootPath, relativePath);
+            if (relativePath.StartsWith(_hostingEnv.WebRootPath))
+            {
+                return relativePath;
+            }
+            relativePath = relativePath.TrimStart('~').TrimStart('/');
+            return Path.Combine(_hostingEnv.WebRootPath, relativePath);
 		}
 	}
 }