CORS issue with Webhook - Access-Control-Allow-Origin not working

Mesut_T · December 21, 2025, 2:44pm

Hi n8n Support Team,
I’m experiencing a CORS issue with my webhook that I cannot resolve despite following all recommended settings.
Setup:

n8n Cloud (focusmedya.app.n8n.cloud)
Webhook URL: https://focusmedya.app.n8n.cloud/webhook/ee7e114b-4326-4bd2-86a6-7f222dfc5a76
HTTP Method: POST
Website calling the webhook: https://digimental.com.tr
What I’ve configured:

Allowed Origins (CORS): *
HTTP Method: POST
Response Headers in “Respond to Webhook” node:
- Access-Control-Allow-Origin: *
- Access-Control-Allow-Methods: POST, OPTIONS
- Access-Control-Allow-Headers: Content-Type
  The Problem:
  When my website makes a POST request to the webhook, the browser blocks it with:

Describe the problem/error/question

What is the error message (if any)?

Please share your workflow

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Information on your n8n setup

n8n version:
Database (default: SQLite):
n8n EXECUTIONS_PROCESS setting (default: own, main):
Running n8n via (Docker, npm, n8n cloud, desktop app):
Operating system:

Miliaga · December 21, 2025, 10:29pm

Hey you need to create a separate, simple workflow whose work is to correctly respond to OPTIONS preflight requests. This is the standard way to handle CORS in n8n.