问如何使用Chrome和Javascript从不同来源的选项卡控制台传递数据？

EN

// ==UserScript==
// @name             New Userscript
// @include          /^https://stackoverflow.com/
// @include          /^https://example.com/
// @grant            GM.setValue
// @grant            GM.getValue
// ==/UserScript==

if (window.location.host === 'stackoverflow.com') {
  GM.setValue('data', 'foo'); // .catch the Promise here if you want
  // after the data is saved, you could also redirect automatically if you want:
  // window.location.href = 'example.com'
} else {
  GM.getValue('data')
    .then((result) => {
      console.log(result);
    });
    // .catch the Promise here if you want
}