In rare cases jasny bootstrap causes bootstrap modals to not show
In our application that uses the latest version of jasny bootstrap we found that for a very small percentage of our users, modals did not work, regardless of the browser they used (Edge, Chrome, or Firefox).
The effect was that the background would fade, but the modal did not show.
We were unable to reproduce the problem in our own environments, but we were finally able to reproduce it using https://www.lambdatest.com/ in the Windows 10/Edge v99 test browser, despite our own local Windows 10 PCs and Edge v99 browsers not having any problems.
We have been able to determine that jasny-bootstrap was a part of the problem, and removing it fixed our problem. Since we only used FileInput, we were able to include just fileinput.js from jasny-bootstrap, so the problem was in one of the other components.
Since this project hasn't been updated in a long time, and the problem is so rare, I don't expect a fix. I just hope that the next time someone encounters this problem this will point them in the right direction.