rusackas commented on code in PR #43906:
URL: https://github.com/apache/superset/pull/43906#discussion_r3943077799
##########
docs/docs/using-superset/embedding.mdx:
##########
@@ -139,6 +139,25 @@ The following URL parameters can be passed through the
`urlParams` option in `da
---
+## Embedding a Single Chart
+
+Individual charts can also be embedded standalone, outside of a dashboard,
using a chart permalink. From Explore, generate a permalink for the chart, then
append URL parameters to it:
+
+```
+/explore/p/<permalink-key>/?standalone=1&show_download=1
+```
+
+| Parameter | Values | Effect
|
+| --------------- | -------- |
-------------------------------------------------------------------------- |
+| `standalone` | `0`, `1` | `0`: normal Explore view; `1`: hide the Explore
header and controls |
+| `show_download` | `0`, `1` | Show a compact download control (CSV, JSON,
Excel) on the standalone chart |
+
+`show_download` is opt-in and has no effect outside of `standalone=1`. The
download control still respects the viewer's export permissions — it's hidden
for users who lack them even when the parameter is set. With the
`GRANULAR_EXPORT_CONTROLS` feature flag enabled, this requires the
`can_export_data` permission on `Superset`; otherwise it falls back to
`can_csv` on `Superset`.
+
Review Comment:
Fair point, the default `SESSION_COOKIE_SAMESITE = "Lax"` does keep the
cookie out of a cross-site iframe. Added a short caveat with the
`SameSite=None` + `Secure` + `frame-ancestors` combo for that case.
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