JS Function Not Defined Chrome Extension Popup.js
问题 I am trying to add this button On Codepen to my chrome extension, my HTML and CSS work perfectly fine. The JS is popup.js and is on the same level as the rest of the code, but it doesn't seem to be linked to the popup.html. Manifest is in the image . I did convert the SCSS to CSS using an online converter. I need help linking the js to popup.html so the button works as it does in Codepen. Html, CSS & JS: $('button.cooldown').click(function(){ var btn = $(this); btn.prop('disabled', true);