Setting up 'health' and 'host-config' for a multipage app

[Vikram_N]

Hello Everyone,

Been building some simple chatbots with Streamlit and I LOVE how easy it is for a newbie to get started with Streamlit.

I have one question though:

Whenever I build a multi-page app, I see the following two console errors.

main.7e6f4f72.js:2 
 GET http://localhost:8501/my-page/_stcore/health 404 (Not Found)
main.7e6f4f72.js:2 
 GET http://localhost:8501/my-page/_stcore/host-config 404 (Not Found)

I don’t see these errors on the main page of my multi-page app.

Any pointers as to how I can set up the host-config and health for a multi page app with potentially many pages?

I’m on Streamlit, version 1.33.0

Thanks!

[mathcatsand]

There shouldn’t be a need to configure those endpoints unless you’re doing something extremely unique.

Can you share a link to your repo? What is your file structure? Are you using the built-in navigation menu or are building your own navigation links? What are the steps you take to run your app and trigger these errors?

[Vikram_N]

@mathcatsand - thank you for the quick response!

Here are the steps to reproduce.

1. Create a Streamlit project with the pages directory and a page inside the pages directory.
2. Go to the inside page from the home page.
3. Refresh the inside page. A console error gets triggered.

I’ve attached 4 screenshots to demonstrate the issue. Happy to raise an issue on GitHub if this is a bug.

[mathcatsand]

Oh, I see. What is your OS and browser (including version)? I’ll have to poke someone to help as I’m not sure.

[Vikram_N]

OS: Mac

Browser: Tested with both Chrome and Firefox

Thanks for helping on this!

[mathcatsand]

I checked with a dev and this is considered expected behavior. Refreshing a page starts a new user session. When you initiate a session from a subpage, there’s some logic to figure out the app’s path.

[Vikram_N]

Great. Thanks so much!

Is there a way to suppress or handle the warning? I ask because in some use cases (ex: say we create a widget from a particular Streamlit page and then embed the widget on another site), these warnings will keep popping up every time the widget loads.

[mathcatsand]

I’m not aware of any native way for doing so. I think you’d you have to dig into the Streamlit code if you want to change this behavior, currently. I suggest creating GitHub issue to explain your use case and feature request for this level of control.

[Vikram_N]

Awesome Thanks!