404 on bottom iframe - app completely broken

[n0kovo]

When accessing https://osmlab.github.io/learnoverpass/en/exercises/intro/1/, or any other exercise, the bottom iframe on the page is serving a HTTP 404 Not Found error.

The URI it is failing to access is https://overpass-turbo.eu/master/map.html?silent, which apparently does not exist anymore. However, https://overpass-turbo.eu/map.html?silent does exist. (Is this the only change needed to fix the problem?)

Furthermore, the top textarea is not editable and the buttons below it are disabled too.

This renders the application completely useless at the moment.

[angoca]

I published my own fork at: https://maptimebogota.github.io/learnoverpass/ and this is working.