Executing JavaScript allowing users to enter parameters

I suppose I’m rather a noob, but I have the Codemirror block installed. I want the code just for an illustration for some users, but I want to make it possible for them to enter just a couple of integers, and then execute the code that they see with those integers as input parameters, and display a result. I made a CodeMirror block and just for testing, I wrote alert(“foo”) into that block. When I click on the execute button, it says It Execute Code on Front End This button will work only on front end! and then, I don’t understand what Front End means in this context, I tend to think of the browser as the front end… Can I achieve what I set out to do? I got a step further. When I previewed, clicking on the execute button printed alert(“foo”) in the box below, so I suppose that what’s front end mean in this context. Makes sense. I haven’t gotten the code to run, though… Hello @kjetilk , It is experimental feature. So, we can’t provide more support on them…