From f19c113064bbcf9e16cb2d709becff66610d6b8a Mon Sep 17 00:00:00 2001
From: Marcus <56945030+maspio@users.noreply.github.com>
Date: Mon, 29 Jul 2024 09:32:42 +0200
Subject: [PATCH] feat(HTTP Request Node): Add option to disable lowercase
 headers (#10154)

---
 .../nodes/HttpRequest/V3/HttpRequestV3.node.ts      | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/packages/nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts b/packages/nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts
index c8f73909cfb1c..5fb21c41841dd 100644
--- a/packages/nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts
+++ b/packages/nodes-base/nodes/HttpRequest/V3/HttpRequestV3.node.ts
@@ -806,6 +806,13 @@ export class HttpRequestV3 implements INodeType {
 							],
 							default: 'brackets',
 						},
+						{
+							displayName: 'Lowercase Headers',
+							name: 'lowercaseHeaders',
+							type: 'boolean',
+							default: true,
+							description: 'Whether to lowercase header names',
+						},
 						{
 							displayName: 'Redirects',
 							name: 'redirect',
@@ -1388,6 +1395,7 @@ export class HttpRequestV3 implements INodeType {
 				allowUnauthorizedCerts,
 				queryParameterArrays,
 				response,
+				lowercaseHeaders,
 			} = this.getNodeParameter('options', itemIndex, {}) as {
 				batching: { batch: { batchSize: number; batchInterval: number } };
 				proxy: string;
@@ -1398,6 +1406,7 @@ export class HttpRequestV3 implements INodeType {
 					response: { neverError: boolean; responseFormat: string; fullResponse: boolean };
 				};
 				redirect: { redirect: { maxRedirects: number; followRedirects: boolean } };
+				lowercaseHeaders: boolean;
 			};
 
 			const url = this.getNodeParameter('url', itemIndex) as string;
@@ -1611,7 +1620,9 @@ export class HttpRequestV3 implements INodeType {
 				}
 				requestOptions.headers = {
 					...requestOptions.headers,
-					...keysToLowercase(additionalHeaders),
+					...(lowercaseHeaders === undefined || lowercaseHeaders
+						? keysToLowercase(additionalHeaders)
+						: additionalHeaders),
 				};
 			}