Backdrop doesn't prevent choosing elements with keyboard

[bartekwasielak]

Describe the bug

Description

In the message view, when a user chooses an action that shows a pop-up window with a backdrop, the user cannot click on any other UI elements, but can choose them with the keyboard by navigating the elements pressing Tab multiple times.

Expected behavior

When a pop-up window is visible (e.g. Retry Message, Edit & retry), all elements of the UI "under" the pop-up should be disabled. User should not be able to click on them, nor to select them using the Tab key.

Actual behavior

When a pop-up window is visible, none of the elements "under" the pop-up is clickable. However, the user can select them using the Tab key and then take an action using the Enter key on the keyboard.

Versions

ServicePulse v2.3.0

Steps to reproduce

1. In ServicePulse, open Failed Messages -> All Failed Messages.
2. Click on any of the messages.
3. Click on the "Retry messages".
4. Hit Tab, then Enter.
5. See that the action related to a highlighted button or link is executed.

Relevant log output

Additional Information

Workarounds

Possible solutions

Additional information