I have the same problem. I don’t know when it appeared; it seems like it happened on its own, without any changes. Console error:
/#/accounts/index?return_module=Accounts&return_action=DetailView:1 Blocked aria-hidden on an element because its descendant retained focus. The focus must not be hidden from assistive technology users. Avoid using aria-hidden on a focused element or its ancestor. Consider using the inert attribute instead, which will also prevent focus. For more details, see the aria-hidden section of the WAI-ARIA specification at Accessible Rich Internet Applications (WAI-ARIA) 1.3.
Element with focus: input
Ancestor with aria-hidden: <input type=​"checkbox" aria-hidden=​"true">​
Since Matt is telling you it’s not easy to get the fix without upgrading, can you tell us why you don’t want to upgrade? For me 8.8 is a very interesting version, lots of good reasons to upgrade.
Have you been having problems with this upgrade, or others?
I haven’t experienced all the new features/fixes yet, but because I have a lot of custom code, the upgrade is not particularly smooth. But it can solve the front-end performance problem, which is important after all. Look at your needs, I still recommend upgrading to v8.8