Form Submission Within A Chrome Extension Popup

I'm trying to build my first Chrome Extension. I need it to have a simple form that submits. I'm having trouble getting anything to run on my popup.js file. I found this post to

Solution 1:

To follow up on this, this ended up being the winning code.

document.addEventListener('DOMContentLoaded', function () {
    console.log("the doc loaded")
    var form = document.getElementById("useCasePostForm")
    console.log(form)
    form.addEventListener('submit',function(e){
        e.preventDefault()
        console.log("added to the form")
    })
});