Webhook Streaming Not Working in Queue Mode (Main + Workers)

Questions
1

Problem Summary:

When running in Regular Mode, both Test URL and Production URL work perfectly with streaming responses. However, after switching to Queue Mode (1 Main + 2 Workers), the Production URL stops working while the Test URL continues to work normally.

Environment:

  • n8n version: 1.123.5

  • Deployment: Kubernetes (self-hosted)

  • Redis: Connected and healthy

    Behavior Comparison:

    Execution Mode Test URL (/webhook-test/ki-cn) Production URL (/webhook/ki-cn)
    Regular Mode :white_check_mark: Works with streaming :white_check_mark: Works with streaming
    Queue Mode :white_check_mark: Works with streaming :cross_mark: Does NOT work

Workflow includes AI Agent nodes with LangChain for streaming chat responses.

Questions:

  1. Is there a way to make Production webhook URLs work in Queue Mode with streaming?

    • Are there specific configurations or environment variables needed?

    • Is there a workaround or recommended architecture?

  2. If webhook streaming in Queue Mode is officially not supported:

    • Can you please confirm this limitation?

    • Are there any plans to support it in future versions?

    • What is the recommended architecture for scalable streaming webhooks?

What I Need:

Either:

  • A solution/configuration to make Production webhooks work in Queue Mode with streaming, OR

  • Official confirmation that this is not supported, so I can plan alternative architectures

Any guidance would be greatly appreciated. This is critical for our AI chatbot deployment where streaming responses and horizontal scalability are both essential requirements.

Thank you!