I started designing a custom Trello power-up and I encountered a couple of problems.
Once I managed to have a basic power-up into Trello, I added it to a board. It worked (the implementation, that is).
However, no matter what capabilities I activate in its settings (and code them in their respective fashion), the features do not show up in the power-up. For instance, I tried to implement a card button, using the sample code found here.
When I do so, the button doesn’t appear:
Here is the repository where I stored my code. It might help figuring out what is not working.
Do you have any idea what might be wrong here? Could it be because the client.js file is not in the same directory as the index.html one?
Thank you very much!