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Update: at note about browser refresh behaviour #728

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Merged
merged 3 commits into from
Sep 19, 2025
Merged

Update: at note about browser refresh behaviour #728

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f0a2536
Update: at note on browser refresh behavior
janaka Jul 3, 2023
b788d0c
Merge branch 'main' into pr/728
sfc-gh-dmatthews Sep 19, 2025
b54e761
Tweak wording
sfc-gh-dmatthews Sep 19, 2025
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1 change: 1 addition & 0 deletions content/develop/api-reference/caching-and-state/session_state.md
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Expand Up @@ -183,6 +183,7 @@ When `runner.enforceSerializableSessionState` is set to `true`, Session State im

### Caveats and limitations

- Streamlit Session State is tied to a WebSocket connection. When a user reloads the browser tab or navigates using a Markdown link, the WebSocket connection and the associated Session State data are reset.
- Only the `st.form_submit_button` has a callback in forms. Other widgets inside a form are not allowed to have callbacks.
- `on_change` and `on_click` events are only supported on input type widgets.
- Modifying the value of a widget via the Session state API, after instantiating it, is not allowed and will raise a `StreamlitAPIException`. For example:
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