From 701ad84e5be9f32f4da1165975f47069c7fc81fa Mon Sep 17 00:00:00 2001
From: Soumyadip Chowdhury <soumyadip.note@gmail.com>
Date: Mon, 9 Dec 2024 15:48:04 +0530
Subject: [PATCH] fix(reverse-proxy): increase request header size limit

---
 packages/reverse-proxy-service/src/server.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/packages/reverse-proxy-service/src/server.ts b/packages/reverse-proxy-service/src/server.ts
index c48d8e8fe..6395e2d27 100644
--- a/packages/reverse-proxy-service/src/server.ts
+++ b/packages/reverse-proxy-service/src/server.ts
@@ -12,6 +12,16 @@ import store from './setup/store';
 import { COOKIE_SECRET } from './setup/env';
 import oidcAuth from './middleware/oidcAuth';
 import { updateApplicationCache } from './utils/applicationCache';
+import http from 'http';
+import https from 'https';
+
+declare module 'http' { interface Agent { maxHeaderSize?: number; } }
+declare module 'https' { interface Agent { maxHeaderSize?: number; } }
+
+const MAX_HEADER_SIZE = 16 * 1024 * 1024; // 16MB
+
+( http.globalAgent as http.Agent ).maxHeaderSize = MAX_HEADER_SIZE;
+( https.globalAgent as https.Agent ).maxHeaderSize = MAX_HEADER_SIZE;
 
 const getServer = async () => {
   const server = express();