background.js

let wechatHeaders = {
  extspam:
    "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",
  "client-version": "2.0.0",
};

let wechatUrls = ["https://wx.qq.com/*", "https://web.wechat.com/*", "https://wx2.qq.com/*"];

chrome.webRequest.onBeforeRequest.addListener(
  function (details) {
    let url = new URL(details.url);
    if (url.pathname == "/" && url.search.indexOf("target=t") == -1) {
      if (url.search == "" || url.search == "?") {
        url.search = "?";
      } else {
        url.search += "&";
      }
      url.search += "target=t";
      return { redirectUrl: url.href };
    }
    return {};
  },
  { urls: wechatUrls },
  ["blocking"]
);

chrome.webRequest.onBeforeSendHeaders.addListener(
  function (details) {
    let url = new URL(details.url);
    if (url.pathname == "/cgi-bin/mmwebwx-bin/webwxnewloginpage") {
      for (var k in wechatHeaders) {
        details.requestHeaders.push({
          name: k,
          value: wechatHeaders[k],
        });
      }
      return { requestHeaders: details.requestHeaders };
    }
    return {};
  },
  { urls: wechatUrls },
  ["blocking", "requestHeaders"]
);