St.expander markdown does not work with links

🎈 Using Streamlit
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Summary

st.expander does not show links as expected from documentation

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Steps to reproduce

Code snippet:

import streamlit as st

with st.expander(label="https://www.google.com/"):
    st.write("No text or url shown")

with st.expander(label="[My Markdown Link]('https://www.google.com/')"):
    st.write("My Markdown Link not being displayed")

with st.expander(label="**My Markdown**"):
    st.write("Regular Bold Text shows")

Expected behavior:

Show the link inside the expander label, using markdown similar to st.markdown("[My Markdown Link](https://www.google.com/)")

Actual behavior:
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Debug info

  • Streamlit version: 1.17.0
  • Python version: 3.10.9
  • Conda
  • OS version: Mac
  • Browser version: Brave
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Link to GitHub issue I created

2 Likes
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I can confirm the issue. This is a regression, the code works as expected in this app:

https://samdobson-streamlit-sandbox-app-za85j0.streamlit.app

Which is deployed with Streamlit 1.15.2 at the moment of writing this.

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Same issue with checkboxes - based on documentation the label should support links, but it doesn’t - i.e the following line doesn’t show correctly:
link = st.checkbox("this is a [link](https://www.google.com)")

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I checked now in https://samdobson-streamlit-sandbox-app-za85j0.streamlit.app/, cannot create a checkbox with a link in its label

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That is because the application has been rebooted and now it runs on streamlit 1.17.0.

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