From 1fa8e94de79e2fa11bd7d338ec4ff42bcd685c23 Mon Sep 17 00:00:00 2001
From: Gal Schlezinger <gal@spitfire.co.il>
Date: Tue, 16 Aug 2022 14:20:05 +0300
Subject: [PATCH] fix(edge-runtime): remove unstable headers from user code
 (#91)

---
 packages/runtime/src/edge-runtime.ts          | 5 +++++
 packages/runtime/src/server/create-handler.ts | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/packages/runtime/src/edge-runtime.ts b/packages/runtime/src/edge-runtime.ts
index 884f7f82..3d98b867 100644
--- a/packages/runtime/src/edge-runtime.ts
+++ b/packages/runtime/src/edge-runtime.ts
@@ -149,6 +149,11 @@ function getDispatchFetchCode() {
       }
 
       response.waitUntil = () => Promise.all(event.awaiting);
+
+      response.headers.delete('content-encoding');
+      response.headers.delete('transform-encoding');
+      response.headers.delete('content-length');
+
       return response;
     }
 
diff --git a/packages/runtime/src/server/create-handler.ts b/packages/runtime/src/server/create-handler.ts
index ce2a3251..98180b31 100644
--- a/packages/runtime/src/server/create-handler.ts
+++ b/packages/runtime/src/server/create-handler.ts
@@ -56,7 +56,7 @@ export function createHandler<T extends EdgeContext>(options: Options<T>) {
       for (const [key, value] of Object.entries(
         toNodeHeaders(response.headers)
       )) {
-        if (key !== 'content-encoding' && value !== undefined) {
+        if (value !== undefined) {
           res.setHeader(key, value)
         }
       }