When an error happens when clicking on a classhelper link, the fallback should be triggered. #43
Description
The current main causes the classhelper to unregister with the nosy classhelper. The code gets an error
when trying to create the roles dropdown because there is no valid backend endpoint for that.
This causes the classhelper to unregister. It would be good if the underlying link got a click event after
the onclick handler was restored so the classhelper opens with only a single click even if the web component
unregisters.
Currently I have to click a second time on the link to get the server side classhelper to display.