1480339 - Deleting class with ::after or ::before will invoke close `option`

Status: RESOLVED DUPLICATE of bug 1448813

(Core :: Layout: Form Controls, defect)

Description

[danilyukpasha]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36

Steps to reproduce:

Firefox version - 59.0.2 (64-bit). 

Below, you can see an example.

On input focus, I remove a class with a pseudo element `::after` on the parent container,
then on blur, I will add a class. I wrapped function `add` to `setTimeout` for clarity.

Steps:
1. Click to `input`.
2. Click to the `select`.

http://jsfiddle.net/paveld/d60ot2z8/4/


Actual results:

Options are showing, after one second, it closes (when a class will be added).


Expected results:

Options are showing and not close after adding a class.

Comment 1

[Stefan [:StefanG_QA]]

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0 (20180807100107)

I've tested this report on Windows 10 x64 and OS X 10.13.5 using latest Nightly and Firefox release build. I was able to reproduce the mentioned behavior using the above steps. When loading the provided page and set focus to the input field, then click at the select, the drop down is closed after one second.

I think the proper component would be Layout: Form Controls. Please change if this is not the right component.