Why don't functions from Background.js Chrome Extension work?

Question

JavaScript

Good afternoon, there is an extension for chrome, it works on the VueJS framework - https://github.com/Kocal/vue-web-extension , according to the logic, the function from background.js should work
Manifest file

"background": {
    "persistent": true,
    "scripts": [
      "scripts/background.js"
    ]
  },

background.js

function pause() {
  chrome.browserAction.setIcon({path: '/images/icon_player.png'});
  .....
}

, called by the chrome.extension.getBackgroundPage().pause() method, but gives an error that there is no such function, what could be the problem?

Answer 1

Found a solution:
background.js

chrome.extension.onMessage.addListener((message) => {
  switch (message.type){
    case 'pause':
      return pause()
    case 'setStream':
      return setStream(message.data)
  }
});

From the popup:

chrome.extension.sendMessage({
type: "setStream",
data: {....}
});