Edit Fields action has improper JSON validation when the output is an array

[tszalaj]

Bug Description

When the Edit Fields action returns an array, there is an invalid error message in runtime:
The 'JSON Output' in item 0 does not contain a valid JSON object
even that the array is valid and in design time is properly visualized.

To Reproduce

1. Connect the trigger to an Edit Fields action in JSON mode with value: {{ [ { "prop": 111}, { "prop": 222 } ] }}
2. Start the workflow

Expected behavior

The Edit Fields action should return two objects.

Operating System

Ubuntu Linux

n8n Version

docker.n8n.io/n8nio/n8n:latest (1.72.1)

Node.js Version

?

Database

SQLite (default)

Execution mode

main (default)

[Joffcom]

Hey @tszalaj,

We have created an internal ticket to look into this which we will be tracking as "N8N-8070"