From 175a01b6086e7762ab75daa1f1fa631dec00c1b6 Mon Sep 17 00:00:00 2001
From: Philipp Otto <philippotto@users.noreply.github.com>
Date: Thu, 15 Dec 2022 14:24:27 +0100
Subject: [PATCH] Disable compression for development proxy (#6699)

* disable compression in dev proxy when proxying JS files to speed up local development

* clean up
---
 tools/proxy/proxy.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/proxy/proxy.js b/tools/proxy/proxy.js
index b1db656077f..38bd093f909 100644
--- a/tools/proxy/proxy.js
+++ b/tools/proxy/proxy.js
@@ -105,6 +105,14 @@ function toWebpackDev(req, res) {
   proxy.web(req, res, { target: `http://127.0.0.1:${PORT + 2}` });
 }
 
+proxy.on("proxyReq", (proxyReq, req) => {
+  if (req.url.match(/\/assets\/bundle\/.+\.js/)) {
+    // Disable compression for JS files, as the performance penalty of the compression
+    // isn't worth the size gain.
+    proxyReq.removeHeader("Accept-Encoding");
+  }
+});
+
 app.all("/assets/bundle/*", toWebpackDev);
 app.all("/*", toBackend);