Streamlit under Caddy proxy

Using Streamlit
1

Hello,

I’m trying to setup a server that uses Caddy to manage several streamlit demo.
My aim is to be able to do:

myserver.com/demo1
myserver.com/demo2

I think I’m in the right direction with the Caddy configuration.
This is the Caddyfile:

myserver:5000 

proxy /demo1 http://localhost:8501/ {
  without /demo1
}

The page loads the streamlit app, but then it is stuck in this loading:

image
image1709×670 14.3 KB

Same behaviour with a simpler Caddyfile:

$ cat Caddyfile 
myserver:5000 

proxy / http://localhost:8501/ {
}

The streamlit app works normally if it is opened directly.

I tried the solution proposed here:

$ cat ~/.streamlit/config.toml 
[server]
enableCORS = false

But it doesn’t work.

Do you have any suggestion?

1 Like
2

Found it.
I was missing the preset websocket in the Caddyfile

image
image713×335 21.9 KB

edit.

The option:

$ cat ~/.streamlit/config.toml 
[server]
enableCORS = false

Is necessary to make it work

1 Like
3

Thank you for your sharing, which helped me a lot!