Compact Mode button appears twice, does nothing(?)

[Art5]

I am a new user, so I don't know exactly what to expect but:
The "Compact Mode" button appears twice, side-by-side, and the screen does not change when either one is pressed.
Firefox has been rebooted.
I am running other add-ins but not targeting Trello.

add-in installed: 2022/03/17
Firefox: 98.0.1

[christiankaindl]

Hi @Art5, thanks for reaching out :) I can't reproduce the issue on my end. Does this happen on every board for you, or just a specific one?

If you have a public board where the issue appears that would also be very helpful!

[koobs]

@christiankaindl Reproducible with:

• Firefox 104.0a1 (2022-07-17) (64-bit)
• TSP 0.13.3
• New Trello Board (Test Public Board)

Notes

• Duplication is not observed on initial page load (browser restart, Trello in tab)
• Reloading tab produces duplicate 'Compact Mode' button.
• Both buttons function

Inspect Element (Before)

Inspect Element (After)

[christiankaindl]

I just tried to reproduce the issue and I think there is some kind of race condition going on, because I can only reproduce it occasionally. I wonder if it is only the Compact Mode button, or if everything is injected twice... will have to debug more

[koobs]

If reproduction frequency isn't sufficient in your environment, let me know if you'd like me to test a debug build to assist isolation