FormTrigger Hidden Fields not being populated through url queries

[Diamon0]

Describe the problem/error/question

When adding hidden fields to a FormTrigger node, and trying to populate it through url queries (?ref=xxxx), the hidden input is not filled accordingly, despite non-hidden fields being filled as expected. This happens both in testing and in production mode.

Please share your workflow/screenshots/recording

The node

{
  "nodes": [
    {
      "parameters": {
        "formTitle": "Prueba",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Nombre",
              "placeholder": "Tu Nombre",
              "requiredField": true
            },
            {
              "fieldType": "hiddenField",
              "fieldName": "ref"
            }
          ]
        },
        "options": {
          "appendAttribution": false,
          "buttonLabel": "Enviar",
          "path": "formtest",
          "respondWithOptions": {
            "values": {
              "formSubmittedText": "Listo!"
            }
          },
          "ignoreBots": true
        }
      },
      "type": "n8n-nodes-base.formTrigger",
      "typeVersion": 2.2,
      "position": [
        0,
        0
      ],
      "id": "65b996f9-96e8-4dbc-9957-1b978da842ad",
      "name": "On form submission",
      "webhookId": "f4efcdce-962b-45c6-9ab9-47b0dca46005"
    }
  ],
  "connections": {},
  "pinData": {},
  "meta": {
    "instanceId": "50759369f41cbf761ba2ef1a5a9e278543758c7f022a7815913b17de00294c2e"
  }
}

The Form HTML

When trying to pre-fill the hidden field through the URL (By Name)

When trying to pre-fill a non-hidden field through the URL (By Name)

Sidestepping

I can instead use field-1 to fill it, but I don't believe this is intended behaviour, or if it is, I would love to know, but this tooltip makes me think otherwise.

Debug info

core

• n8nVersion: 1.82.3
• platform: docker (self-hosted)
• nodeJsVersion: 20.18.3
• database: sqlite
• executionMode: regular
• concurrency: -1
• license: enterprise (production)

storage

• success: all
• error: all
• progress: false
• manual: true
• binaryMode: memory

pruning

• enabled: true
• maxAge: 336 hours
• maxCount: 10000 executions

client

• userAgent: mozilla/5.0 (x11; linux x86_64; rv:136.0) gecko/20100101 firefox/136.0
• isTouchDevice: false

Generated at: 2025-03-13T23:32:50.223Z}

[Joffcom]

Hey @Diamon0,

We have created an internal ticket to look into this which we will be tracking as "GHC-1194"

[Joffcom]

Hey @Diamon0,

Can you upgrade to 1.83 and see if that is working for you? I have given it it a test and all appears to be working.

[Diamon0]

Hey @Diamon0,

Can you upgrade to 1.83 and see if that is working for you? I have given it it a test and all appears to be working.

Hello @Joffcom, this does indeed work properly in 1.83; I am using latest in the server for stability, so I was not aware that a future version fixed this. Thanks for the response, I will simply wait for the change to come to stable.