From 5ea4be474e0ed14eea8bce585a59824c08ac66f5 Mon Sep 17 00:00:00 2001
From: Elias Meire <elias@meire.dev>
Date: Fri, 29 Aug 2025 17:56:18 +0200
Subject: [PATCH] fix(editor): Support line breaks in resource mapper field
 names (#18982)

---
 .../editor-ui/src/utils/nodeTypeUtils.test.ts | 30 ++++++++++++++++++-
 .../editor-ui/src/utils/nodeTypesUtils.ts     |  2 +-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/packages/frontend/editor-ui/src/utils/nodeTypeUtils.test.ts b/packages/frontend/editor-ui/src/utils/nodeTypeUtils.test.ts
index fd190ff82f..517ee410f5 100644
--- a/packages/frontend/editor-ui/src/utils/nodeTypeUtils.test.ts
+++ b/packages/frontend/editor-ui/src/utils/nodeTypeUtils.test.ts
@@ -1,5 +1,9 @@
 import type { ResourceMapperField } from 'n8n-workflow';
-import { isCommunityPackageName, isResourceMapperFieldListStale } from './nodeTypesUtils';
+import {
+	isCommunityPackageName,
+	isResourceMapperFieldListStale,
+	parseResourceMapperFieldName,
+} from './nodeTypesUtils';
 
 describe('isResourceMapperFieldListStale', () => {
 	const baseField: ResourceMapperField = {
@@ -127,3 +131,27 @@ describe('isCommunityPackageName', () => {
 		expect(isCommunityPackageName('@test-scope/n8n-nodes-test')).toBe(true);
 	});
 });
+
+describe('parseResourceMapperFieldName', () => {
+	test.each([
+		{ input: 'value["fieldName"]', expected: 'fieldName', desc: 'basic field name' },
+		{
+			input: 'value["field with spaces"]',
+			expected: 'field with spaces',
+			desc: 'field with spaces',
+		},
+		{
+			input: 'value["field\nwith\nactual\nnewlines"]',
+			expected: 'field\nwith\nactual\nnewlines',
+			desc: 'field with newlines',
+		},
+		{
+			input: 'value["field\\"with\\"quotes"]',
+			expected: 'field\\"with\\"quotes',
+			desc: 'field with escaped quotes',
+		},
+		{ input: 'fieldName', expected: 'fieldName', desc: 'no value wrapper' },
+	])('should parse $desc', ({ input, expected }) => {
+		expect(parseResourceMapperFieldName(input)).toBe(expected);
+	});
+});
diff --git a/packages/frontend/editor-ui/src/utils/nodeTypesUtils.ts b/packages/frontend/editor-ui/src/utils/nodeTypesUtils.ts
index ccdafae783..d7dd8231ff 100644
--- a/packages/frontend/editor-ui/src/utils/nodeTypesUtils.ts
+++ b/packages/frontend/editor-ui/src/utils/nodeTypesUtils.ts
@@ -32,7 +32,7 @@ import {
 const CRED_KEYWORDS_TO_FILTER = ['API', 'OAuth1', 'OAuth2'];
 const NODE_KEYWORDS_TO_FILTER = ['Trigger'];
 const COMMUNITY_PACKAGE_NAME_REGEX = /^(?!@n8n\/)(@[\w.-]+\/)?n8n-nodes-(?!base\b)\b\w+/g;
-const RESOURCE_MAPPER_FIELD_NAME_REGEX = /value\[\"(.+)\"\]/;
+const RESOURCE_MAPPER_FIELD_NAME_REGEX = /value\["(.+?)"\]/s;
 
 export function getAppNameFromCredType(name: string) {
 	return name