在ajax请求发生时运行代码的Chrome扩展程序

{
  "manifest_version": 2,
  "name": "AJAX请求拦截",
  "version": "1.0",
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "https://*/*",
    "http://*/*"
  ],
  "background": {
    "scripts": ["background.js"],
    "persistent": false
  }
}

chrome.webRequest.onBeforeRequest.addListener(
  function(details) {
    // 在这里编写要在AJAX请求发生时运行的代码
    console.log("AJAX请求发生: " + details.url);
  },
  {
    urls: ["https://*/*", "http://*/*"],
    types: ["xmlhttprequest"]
  },
  ["blocking"]
);