Execute workflow only if webhook called with post method

Hello,

I’m trying to start a very smple postman work flow like this, coming from a webhook
And I want the workflow to execute my Request only if the Webhook is called with POST method

I tried this

I works very well with I used the “Preview” webhook => :ok_hand:
But when I start call the webkook URL from external app, the flows is not working well
it always ends up in “waiting for flow to run”

Any idea why ?

Also, forgot to say that I configured the webhook to receive full data