From 107ba10626c6f028ef5341a794f5acaf748d3efd Mon Sep 17 00:00:00 2001
From: Matt Mastracci <matthew@mastracci.com>
Date: Wed, 19 Jul 2023 12:43:49 -0600
Subject: [PATCH] fix(ext/http): Error on deprecated/unavailable features
 (#19880)

Throws an error when user code attempts to use unsupported options (may
help reduce confusion when migrating to Deno.serve)
---
 ext/http/00_serve.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/ext/http/00_serve.js b/ext/http/00_serve.js
index 95079f4128..e881cca2a3 100644
--- a/ext/http/00_serve.js
+++ b/ext/http/00_serve.js
@@ -627,6 +627,17 @@ function serve(arg1, arg2) {
     reusePort: options.reusePort ?? false,
   };
 
+  if (options.certFile || options.keyFile) {
+    throw new TypeError(
+      "Unsupported 'certFile' / 'keyFile' options provided: use 'cert' / 'key' instead.",
+    );
+  }
+  if (options.alpnProtocols) {
+    throw new TypeError(
+      "Unsupported 'alpnProtocols' option provided. 'h2' and 'http/1.1' are automatically supported.",
+    );
+  }
+
   let listener;
   if (wantsHttps) {
     if (!options.cert || !options.key) {