Steps to reproduce the issue

• Hit the "Settings" toolbar button on any component (let's call it com_X) and you get redirected to the component's settings, loaded via com_config.
• If you hit "Save & Close" you get redirected back to the exact URL you previously were on com_X.
• If you hit "Cancel" you are redirected back to the component's main page (index.php?com_X) and NOT to the page you were in that component.

Expected result

• If you hit "Cancel" you should be redirected back to specific page you were before.

Actual result

• If you hit "Cancel" you are redirected back to the component's main page (index.php?com_X) and NOT to the page you were in that component.

System information (as much as possible)

Joomla 3.9.18

Additional comments

Submitted PR with fix at: #28872