We have an Operations Dashboard we are building that contains a map, a list, a panel with a category selector, and an embedded content widget.
The content that will be embedded is a Python web page and accepts parameters via the URL (i.e. query string).
If we have one value selected in the category selector, it passes everything to the embedded content URL. However, if we have multiple values selected within the category selector, it only passes the first value and not all of the values. Using Google Chrome DevTools, we can confirm that only one value of the category selector is included in the query string.
We are on ArcGIS Enterprise 10.8.1.