toast.js : Cannot read properties of null (reading 'classList')

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

I'm having the following issue in production on one website

Cannot read properties of null (reading 'classList')

At the lines https://github.com/twbs/bootstrap/blob/bf6240dad9a466e9d3bc682abf416e9e5b4c66df/js/src/toast.js#L114-L116

My guess is that the element is already removed when that callback is called (i'm calling .dispose in the bs.hidden callback event I don't know if that's related or not. it should work without issues either way in my opinion).

Reduced test cases

My proposal is to simply add a null check before and return early if this._element is null

Demo https://codepen.io/lekoalabe/pen/oNdPNXJ

click create modal click create toast accept sweet alert modal try to click close icon on toast => it triggers the error

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

Windows

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

Chrome

What version of Bootstrap are you using?

v5.2.2