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-rw-r--r--ext/http/02_websocket.ts2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/http/02_websocket.ts b/ext/http/02_websocket.ts
index 073929961..21f403bff 100644
--- a/ext/http/02_websocket.ts
+++ b/ext/http/02_websocket.ts
@@ -37,7 +37,7 @@ const _ws = Symbol("[[associated_ws]]");
const websocketCvf = buildCaseInsensitiveCommaValueFinder("websocket");
const upgradeCvf = buildCaseInsensitiveCommaValueFinder("upgrade");
-function upgradeWebSocket(request, options = {}) {
+function upgradeWebSocket(request, options = { __proto__: null }) {
const inner = toInnerRequest(request);
const upgrade = request.headers.get("upgrade");
const upgradeHasWebSocketOption = upgrade !== null &&