GitHub - 5long/envoy-forwarded-proto: Reproduce a bug of Envoy that overwrites x-forwarded-proto from downstream

Steps to reproduce the bug:

Install Docker
Install a debugging-friendly HTTP client (e.g. https://httpie.org/ )
Enable Swarm Mode: docker swarm init
Deploy the stack: docker stack up -c stack.yaml http
- This will listen on port 2100 & 2101
Access endpoints :2101/yes with an extra header X-Forwarded-Proto: https:

# With httpie:
http :2101/yes x-forwarded-proto:https show_env==1
# With curl:
curl 127.0.0.1:2101/yes -H x-forwarded-proto:https

:2101/yes should respond with yes https, which is configured as direct_response

Accessing endpoint :2101/bin/headers?show_env=1 returns all headers sent from Envoy to httpbin. Which shows that header X-Forwarded-Proto is overwritten.

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
Readme.mkd		Readme.mkd
envoy.yaml		envoy.yaml
stack.yaml		stack.yaml