message: refactor: do not send self message on background page
diff: @@ -420,7 +420,8 @@ function initServer (): void {
  if (sender.tab && sender.tab.id) {
  return messageSend(sender.tab.id, message)
  } else {
  - return messageSend(message)
  + // has to be a tab
  + // return messageSend(message)
  }
  }
  })
  