diff --git a/SimpleHttpServer/HttpServer.cs b/SimpleHttpServer/HttpServer.cs
index 0d5fc04..e235541 100644
--- a/SimpleHttpServer/HttpServer.cs
+++ b/SimpleHttpServer/HttpServer.cs
@@ -137,13 +137,13 @@ public sealed class HttpServer {
     private string NormalizeUrlPath(string url) => '/' + url.TrimStart('/');
 
     private async Task ProcessRequestAsync(HttpListenerContext ctx) {
+        using RequestContext rc = new RequestContext(ctx);
         try {
             var decUri = WebUtility.UrlDecode(ctx.Request.RawUrl)!; // TODO add path escape countermeasures+unittests
             var splitted = NormalizeUrlPath(decUri).Split('?', 2, StringSplitOptions.None);
             var path = WebUtility.UrlDecode(splitted.First());
 
 
-            using var rc = new RequestContext(ctx);
             if (simpleEndpointMethodInfos.TryGetValue((decUri, ctx.Request.HttpMethod.ToUpperInvariant()), out var endpointInvocationInfo)) {
                 var mi = endpointInvocationInfo.methodInfo;
                 var qparams = endpointInvocationInfo.queryParameters;
@@ -198,6 +198,7 @@ public sealed class HttpServer {
             }
 
         } catch (Exception ex) {
+            await HandleDefaultErrorPageAsync(rc, 500);
             logger.Fatal($"Caught otherwise uncaught exception while ProcessingRequest:\n{ex}");
         }
     }