[FAQ] chrome.runtime.onMessage 问题, Unchecked runtime.lastError: The message port closed before a response was received

  // quasar background-hook.js
  chrome.runtime.onMessage.addListener(function (request, sender, sendResponse) {
    if (request.accessToken !== '') {
      chrome.storage.local.set({ accessToken: request.accessToken }, () => {
        sendResponse({ farewell: 'success' })
      })
    }
    // Fix, Unchecked runtime.lastError: The message port closed before a response was received.
    return true
  })

Ref：https://stackoverflow.com/questions/54126343/how-to-fix-unchecked-runtime-lasterror-the-message-port-closed-before-a-respon

Link：https://www.cnblogs.com/farwish/p/12236444.html