From a092ffaadb3a265a207acc558e6cd021fc3bb6d9 Mon Sep 17 00:00:00 2001
From: Husam Elbashir <39692071+HusamElbashir@users.noreply.github.com>
Date: Tue, 10 Dec 2024 05:58:31 +0200
Subject: [PATCH] fix(node-ws): websocket upgrade header value case sensitivity
 (#876)

---
 .changeset/cool-coats-try.md  | 5 +++++
 packages/node-ws/src/index.ts | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/cool-coats-try.md

diff --git a/.changeset/cool-coats-try.md b/.changeset/cool-coats-try.md
new file mode 100644
index 00000000..fea70cbb
--- /dev/null
+++ b/.changeset/cool-coats-try.md
@@ -0,0 +1,5 @@
+---
+'@hono/node-ws': patch
+---
+
+Fixed case-sensitivity of the WebSocket "Upgrade" header value
diff --git a/packages/node-ws/src/index.ts b/packages/node-ws/src/index.ts
index e8a45b8a..4ef69022 100644
--- a/packages/node-ws/src/index.ts
+++ b/packages/node-ws/src/index.ts
@@ -63,7 +63,7 @@ export const createNodeWebSocket = (init: NodeWebSocketInit): NodeWebSocket => {
     },
     upgradeWebSocket: (createEvents) =>
       async function upgradeWebSocket(c, next) {
-        if (c.req.header('upgrade') !== 'websocket') {
+        if (c.req.header('upgrade')?.toLowerCase() !== 'websocket') {
           // Not websocket
           await next()
           return