How do you send a message from a React Popup?

[winstxnhdw]

Looking at the example here, this should work, but it doesn't..

import './App.css'

export default function App() {
  return (
    <>
      <div className='card'>
        <button type='button' onClick={() => browser.runtime.sendMessage('restore')}>
          Restore
        </button>
      </div>
    </>
  )
}

[1natsu172]

Please give me additional information on how it doesn't work.

[winstxnhdw]

Ahh, I found out the example never set the tabs permission.