diff --git a/src/Microsoft.AspNetCore.SpaServices/Webpack/ConditionalProxyMiddleware.cs b/src/Microsoft.AspNetCore.SpaServices/Webpack/ConditionalProxyMiddleware.cs
index 1b36cd5..292f62d 100644
--- a/src/Microsoft.AspNetCore.SpaServices/Webpack/ConditionalProxyMiddleware.cs
+++ b/src/Microsoft.AspNetCore.SpaServices/Webpack/ConditionalProxyMiddleware.cs
@@ -22,6 +22,7 @@ namespace Microsoft.AspNetCore.SpaServices.Webpack
         private readonly RequestDelegate _next;
         private readonly ConditionalProxyMiddlewareOptions _options;
         private readonly string _pathPrefix;
+        private readonly bool _pathPrefixIsRoot;
 
         public ConditionalProxyMiddleware(
             RequestDelegate next,
@@ -35,6 +36,7 @@ namespace Microsoft.AspNetCore.SpaServices.Webpack
 
             _next = next;
             _pathPrefix = pathPrefix;
+            _pathPrefixIsRoot = string.Equals(_pathPrefix, "/", StringComparison.Ordinal);
             _options = options;
             _httpClient = new HttpClient(new HttpClientHandler());
             _httpClient.Timeout = _options.RequestTimeout;
@@ -42,7 +44,7 @@ namespace Microsoft.AspNetCore.SpaServices.Webpack
 
         public async Task Invoke(HttpContext context)
         {
-            if (context.Request.Path.StartsWithSegments(_pathPrefix))
+            if (context.Request.Path.StartsWithSegments(_pathPrefix) || _pathPrefixIsRoot)
             {
                 var didProxyRequest = await PerformProxyRequest(context);
                 if (didProxyRequest)
diff --git a/src/Microsoft.AspNetCore.SpaServices/Webpack/WebpackDevMiddleware.cs b/src/Microsoft.AspNetCore.SpaServices/Webpack/WebpackDevMiddleware.cs
index 190fb49..2e8f92e 100644
--- a/src/Microsoft.AspNetCore.SpaServices/Webpack/WebpackDevMiddleware.cs
+++ b/src/Microsoft.AspNetCore.SpaServices/Webpack/WebpackDevMiddleware.cs
@@ -17,7 +17,10 @@ namespace Microsoft.AspNetCore.Builder
 
         private static readonly JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings
         {
-            ContractResolver = new CamelCasePropertyNamesContractResolver(),
+            // Note that the aspnet-webpack JS code specifically expects options to be serialized with
+            // PascalCase property names, so it's important to be explicit about this contract resolver
+            ContractResolver = new DefaultContractResolver(),
+
             TypeNameHandling = TypeNameHandling.None
         };