gistfile1.js

function loadPage(address, route, lang){
  page.customHeaders = {'accept-language': lang};
  var address = url + route;

  var docLocator;
  var fxaHeader;
  if (page === 'signup'){
    docLocator = 'sign-up';
    fxaHeader = "fxa-signup-header";
  }else if(page === 'signin'){
    docLocator = 'sign-in';
    fxaHeader = "fxa-signin-header";
  }
  page.open(address, function (status) {
    if (status !== 'success') {
      console.log('FAIL to load the address');
    } else {
      waitFor(function() {
        // Check in the page if a specific element is now visible
        return page.evaluate(function (docLoc) {
          console.log(docLoc);
          return $(document.getElementsByClassName(docLoc)).is(":visible");
        }, docLocator);
      }, function() {
          var data = page.evaluate(function () {
            var p = document.getElementsByClassName("privacy-links");
            var fxa = document.getElementById(fxaHeader).innerHTML;
            return {"title":document.title,
                    "privacy-links": p[0].textContent.trim(),
                    "fxa-signup-header": fxa};
          });
        console.log('accept-language:'+lang);
        console.log(JSON.stringify(data));
        // page.render('fxa-'+page+'-'+lang+'.png');
        phantom.exit();
        });
    }
  });
}

loadPage(url, page, lang);