phantomjs --ignore-ssl-errors=true --load-images=no --ssl-protocol=tlsv1 gradeCheck.js

gradeCheck.js

// Example using HTTP POST operation

var username = "USERNAME";  // must be all capitalized
var pass = "password";

var page = require('webpage').create();
var server = 'https://www.spire.umass.edu/psp/heproda/';
var data = 'userid='+username+'&pwd='+pass+'&languageCd=ENG&timezoneOffset=0&Submit=Go&cmd=login';

page.settings.userAgent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_2) AppleWebKit/537.74.9 (KHTML, like Gecko) Version/7.0.2 Safari/537.74.9';

page.viewportSize = { width: 800, height: 800 };

page.open(server, 'post', data, function (status) {
          if (status !== 'success') {
          console.log(page.content);
          console.log('Unable to post!');
          } else {
          console.log("logged in");
          setTimeout(loadPage, 3000);
}});

function loadPage()
{
    page.open('https://www.spire.umass.edu/psc/heproda/EMPLOYEE/HRMS/c/SA_LEARNER_SERVICES.SSR_SSENRL_GRADE.GBL?FolderPath=PORTAL_ROOT_OBJECT.HCCC_ACADEMIC_RECORDS.HC_SSR_SSENRL_GRADE_GBL&IsFolder=false&IgnoreParamTempl=FolderPath%2cIsFolder', function(status){
              console.log(status);
              
              page.evaluate(function(){
                            if (window._phantom) {
                            // Patch since PhantomJS does not implement click() on HTMLElement. In some
                            // cases we need to execute the native click on an element. However, jQuery's
                            // $.fn.click() does not dispatch to the native function on <a> elements, so we
                            // can't use it in our implementations: $el[0].click() to correctly dispatch.
                            if (!HTMLElement.prototype.click) {
                            HTMLElement.prototype.click = function() {
                            var ev = document.createEvent('MouseEvent');
                            ev.initMouseEvent(
                                              'click',
                                              /*bubble*/true, /*cancelable*/true,
                                              window, null,
                                              0, 0, 0, 0, /*coordinates*/
                                              false, false, false, false, /*modifier keys*/
                                              0/*button=left*/, null
                                              );
                            this.dispatchEvent(ev);
                            };
                            }
                            }
                            
                            document.getElementById('DERIVED_SSS_SCT_SSS_TERM_LINK').click();
                            setTimeout(function(){document.getElementById('SSR_DUMMY_RECV1$sels$1$$0').click(); setTimeout(function(){document.getElementById('DERIVED_SSS_SCT_SSR_PB_GO').click()}, 500);}, 500);
                            });
              
              setTimeout(function()
                         {
                page.clipRect = page.evaluate(function() {
                                                       return document.getElementById('ACE_DERIVED_SSS_GRD_GROUPBOX2').getBoundingClientRect();
                                                       });
              page.render("grades.png");
              phantom.exit();
                         }, 2000);
              });
}