Sortable containment boundaries do not get updated while scolling
This bug might be related to #9460, but its fix does not fix this issue.
If you make a sortable, which "containment" element is placed in an element that is too small to show it without scrolling, you can scroll while dragging and its boundaries do not move with the scrolling.
Here's a fiddle to better show what I mean http://jsfiddle.net/e9hgdjqf/
Thanks for the report. Does the issue you describe exist when jQuery UI 1.12.1 is used or only with jQuery UI 1.13.0 or newer?
Seems to happen with both versions. Sorry I just noticed the JSFiddle uses a really outdated version of... everything, so here's a codepen version: https://codepen.io/Nuud/pen/poQaqdg I tested it with both 1.13.2 and 1.12.1.
Thanks for the info. Since the issue is already in 1.12, given limited team resources it's not likely to be fixed by the UI team; see the project status at https://blog.jqueryui.com/2021/10/jquery-maintainers-update-and-transition-jquery-ui-as-part-of-overall-modernization-efforts/. PRs are welcome if they're not too complex.