PhantomJS/CasperJS/playwright

    var page = require('webpage').create();
    page.settings.userAgent = 'Mozilla/5.0 UCBrowser/9.4.1.362 U3/0.8.0 Mobile Safari/533.1';

    console.log('The user agent is ' + page.settings.userAgent);

    // 生成一个随机 proxy tunnel
    var seed = 1;
    function random() {
        var x = Math.sin(seed++) * 10000;
        return x - Math.floor(x);
    }
    const tunnel = random()*100;

    //page.customHeaders = {
    //  "proxy-tunnel": tunnel,
    //};

    page.onResourceReceived = function(j) {
      for (var i = 0; i < j.headers.length; ++i) {
        console.log(j.headers[i].name + ': ' + j.headers[i].value);
      }
    };

    page.open("http://httpbin.org/ip", {}, function(status) {
      console.log('status> ' + status);
      console.log(page.content);
      setTimeout(function() {
        phantom.exit();
      }, 3000);
    });

    var casper = require('casper').create();

    // 生成一个随机 proxy tunnel
    var seed = 1;
    function random() {
        var x = Math.sin(seed++) * 10000;
        return x - Math.floor(x);
    }
    const tunnel = random()*1000;

    casper.on('started', function () {
        this.page.customHeaders = {
            "User-Agent" : "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:26.0) Gecko/20100101 Firefox/26.0",
            "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
            "Accept-Language": "en-US,en;q=0.5",
            "Accept-Encoding": "gzip, deflate",
            "Connection" : "keep-alive",
            "Proxy-Tunnel": tunnel
        }
    });
    casper.start("http://httpbin.org/headers");


    casper.then(function() {
        console.log('First Page: ' + this.page.content);
    });
    casper.run();

const { chromium, webkit, firefox } = require('playwright');

(async () => {
    const browser = await chromium.launch({
      proxy: {
        server: 'http://tunnel.hahado.cn:31111',
        username: 'username',
        password: 'password'
      }
    });
      const page = await browser.newPage();

      // Subscribe to 'request' and 'response' events.
      page.on('request', request =>
          console.log('>>', request.method(), request.url()));
      page.on('response', response =>
          console.log('<<', response.status(), response.url()));
      await page.goto('https://httpbin.org/ip');

      await browser.close();
})();