Execute script after click in popup.html (chrome extension)

Question

I am trying to execute javascript on a page when I click on a button in popup.html. I tried to use such a way:

In background.js:

<

Answer 1

You can also use Messaging:

in popup.js

document.getElementById("clicked-btn").addEventListener("click", function(e) {
    chrome.runtime.sendMessage({'myPopupIsOpen': true});
});

in background.js

chrome.runtime.onMessage.addListener(function(message, sender) {
      if(!message.myPopupIsOpen) return;

      // Do your stuff
});

Not tested but should works, further informations about Messaging.