I am encountering a problem with my webhook where the payload size is considerably smaller than the expected limit of 16MB. Specifically, I am unable to process payloads that are far below this threshold, which seems unusual given the default configurations.
Here are some details:
n8n Version: 1.44.1
Deployment: Docker with compose
Symptoms: The payloads being received are rejected despite being significantly smaller than 16MB, in fact in the tens of KB scale.
Configuration Attempts: I have tried adjusting the N8N_PAYLOAD_SIZE_MAX environment variable without success.
Has anyone else faced this issue or does anyone have insights on what might be causing this limitation? Any advice on configurations or settings that could potentially resolve this would be greatly appreciated.
Thanks for posting here and welcome to the community!
I’m sorry to hear you’re encountering issues with your n8n instance. We have had a few users report issues with webhooks not performing correctly and are currently investigating. We’ll keep you posted on any updates from our side.
To help us, could you provide a simple workflow that demonstrates the behavior you are seeing?
Also any error logs or screenshots would help!
In order to check if there was any related JSON parsing error, I tried adding many AAAA to a working payload, and it also fails with 404, so no formatting issues here.
Please apologize but I’ve just noticed that the issue is probably related to some middleware (WAF) sitting between the machine making the request and the n8n instance.