Dropdown `data-bs-boundary` not working

Created by: MacrayBlackhand

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

Prior to the v5 upgrade, I was using data-boundary="window" on a Dropdown with variable length menu items. This, assuming that data-bs-boundary is the new attribute, is no longer working.

The Dropdown is right justified on the page and due to this, dropdown items that are longer that the selected item are truncated by the edge of the window.

I have also played with the data-bs-popper attribute mentioned in the migration docs to no avail.

Reduced test cases

https://jsfiddle.net/q78n9p4v/

What operating system(s) are you seeing the problem on?

Windows

What browser(s) are you seeing the problem on?

Chrome, Microsoft Edge

What version of Bootstrap are you using?

v5.1.3