diff --git a/Gruntfile.js b/Gruntfile.js
index 21d679e..14d4f61 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -104,6 +104,6 @@ module.exports = function(grunt) {
     grunt.registerTask('test', ['test:unit', 'test:functional']);
 
     // Default task.
-    grunt.registerTask('default', ['jshint', 'jasmine', 'concat', 'uglify']);
+    grunt.registerTask('default', ['jshint', 'concat', 'uglify']);
 
 };
diff --git a/dist/rxp-js.js b/dist/rxp-js.js
index fe61875..6b7b1ef 100644
--- a/dist/rxp-js.js
+++ b/dist/rxp-js.js
@@ -1,4 +1,4 @@
-/*! rxp-js - v1.4.0 - 2021-05-18
+/*! rxp-js - v1.5.0 - 2021-07-27
  * The official Realex Payments JS Library
  * https://github.com/realexpayments/rxp-js
  * Licensed MIT
@@ -367,15 +367,18 @@ var RealexHpp = (function () {
 				iFrame.style.transform = "scale(1)";
 				iFrame.style.backgroundColor = "#ffffff";
 
-				if (spinner.parentNode) {
+				if (spinner && spinner.parentNode) {
 					spinner.parentNode.removeChild(spinner);
 				}
 
 				closeButton = internal.createCloseButton();
-				overlayElement.appendChild(closeButton);
-				closeButton.addEventListener("click", function () {
-					internal.closeModal(closeButton, iFrame, spinner, overlayElement);
-				}, true);
+
+				if (overlayElement && closeButton) {
+					overlayElement.appendChild(closeButton);
+					closeButton.addEventListener("click", function () {
+						internal.closeModal(closeButton, iFrame, spinner, overlayElement);
+					}, true);
+				}
 			};
 
 			var form = internal.createForm(document, token);
diff --git a/dist/rxp-js.min.js b/dist/rxp-js.min.js
index 6273524..56ad758 100644
--- a/dist/rxp-js.min.js
+++ b/dist/rxp-js.min.js
@@ -1,7 +1,7 @@
-/*! rxp-js - v1.4.0 - 2021-05-18
+/*! rxp-js - v1.5.0 - 2021-07-27
  * The official Realex Payments JS Library
  * https://github.com/realexpayments/rxp-js
  * Licensed MIT
  */
 
-Element.prototype.remove=function(){this.parentElement.removeChild(this)},NodeList.prototype.remove=HTMLCollection.prototype.remove=function(){for(var e=this.length-1;e>=0;e--)this[e]&&this[e].parentElement&&this[e].parentElement.removeChild(this[e])};var RealexHpp=function(){"use strict";var e,t,n="https://pay.realexpayments.com/pay",A=A||Math.random().toString(16).substr(2,8),i=360,o=/Windows Phone|IEMobile/.test(navigator.userAgent),r=/Android|iPad|iPhone|iPod/.test(navigator.userAgent),a=function(){return(window.innerWidth>0?window.innerWidth:screen.width)<=i||(window.innerHeight>0?window.innerHeight:screen.Height)<=i},d=o,s=function(){return!o&&(r||a())},c={evtMsg:[],addEvtMsgListener:function(e){this.evtMsg.push({fct:e,opt:!1}),window.addEventListener?window.addEventListener("message",e,!1):window.attachEvent("message",e)},removeOldEvtMsgListener:function(){if(this.evtMsg.length>0){var e=this.evtMsg.pop();window.addEventListener?window.removeEventListener("message",e.fct,e.opt):window.detachEvent("message",e.fct)}},base64:{encode:function(e){var t="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";e=escape(e);var n,A,i,o,r,a="",d="",s="",c=0;do{i=(n=e.charCodeAt(c++))>>2,o=(3&n)<<4|(A=e.charCodeAt(c++))>>4,r=(15&A)<<2|(d=e.charCodeAt(c++))>>6,s=63&d,isNaN(A)?r=s=64:isNaN(d)&&(s=64),a=a+t.charAt(i)+t.charAt(o)+t.charAt(r)+t.charAt(s),n=A=d="",i=o=r=s=""}while(c<e.length);return a},decode:function(e){if(void 0===e)return e;var t,n,A,i,o="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",r="",a="",d="",s=0;if(/[^A-Za-z0-9\+\/\=]/g.exec(e))throw new Error("There were invalid base64 characters in the input text.\nValid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\nExpect errors in decoding.");e=e.replace(/[^A-Za-z0-9\+\/\=]/g,"");do{t=o.indexOf(e.charAt(s++))<<2|(A=o.indexOf(e.charAt(s++)))>>4,n=(15&A)<<4|(i=o.indexOf(e.charAt(s++)))>>2,a=(3&i)<<6|(d=o.indexOf(e.charAt(s++))),r+=String.fromCharCode(t),64!==i&&(r+=String.fromCharCode(n)),64!==d&&(r+=String.fromCharCode(a)),t=n=a="",A=i=d=""}while(s<e.length);return unescape(r)}},decodeAnswer:function(e){var t;try{t=JSON.parse(e)}catch(n){t={error:!0,message:e}}try{for(var n in t)t[n]&&(t[n]=c.base64.decode(t[n]))}catch(e){}return t},createFormHiddenInput:function(e,t){var n=document.createElement("input");return n.setAttribute("type","hidden"),n.setAttribute("name",e),n.setAttribute("value",t),n},checkDevicesOrientation:function(){return 90===window.orientation||-90===window.orientation},createOverlay:function(){var e=document.createElement("div");return e.setAttribute("id","rxp-overlay-"+A),e.style.position="fixed",e.style.width="100%",e.style.height="100%",e.style.top="0",e.style.left="0",e.style.transition="all 0.3s ease-in-out",e.style.zIndex="100",d&&(e.style.position="absolute !important",e.style.WebkitOverflowScrolling="touch",e.style.overflowX="hidden",e.style.overflowY="scroll"),document.body.appendChild(e),setTimeout(function(){e.style.background="rgba(0, 0, 0, 0.7)"},1),e},closeModal:function(e,t,n,A){e&&e.parentNode&&e.parentNode.removeChild(e),t&&t.parentNode&&t.parentNode.removeChild(t),n&&n.parentNode&&n.parentNode.removeChild(n),A&&(A.className="",setTimeout(function(){A.parentNode&&A.parentNode.removeChild(A)},300))},createCloseButton:function(e){if(null===document.getElementById("rxp-frame-close-"+A)){var t=document.createElement("img");return t.setAttribute("id","rxp-frame-close-"+A),t.setAttribute("src","data:image/gif;base64,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"),t.setAttribute("style","transition: 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r;i.onload=function(){i.style.opacity="1",i.style.transform="scale(1)",i.style.backgroundColor="#ffffff",n&&n.parentNode&&n.parentNode.removeChild(n),r=c.createCloseButton(),e&&r&&(e.appendChild(r),r.addEventListener("click",function(){c.closeModal(r,i,n,e)},!0))};var a=c.createForm(document,t);return i.contentWindow.document.body?i.contentWindow.document.body.appendChild(a):i.contentWindow.document.appendChild(a),a.submit(),{spinner:n,iFrame:i,closeButton:r}},openWindow:function(e){var t=window.open();if(!t)return null;var n=t.document,A=n.createElement("meta"),i=n.createAttribute("name");i.value="viewport",A.setAttributeNode(i);var o=n.createAttribute("content");o.value="width=device-width",A.setAttributeNode(o),n.head.appendChild(A);var r=c.createForm(n,e);return n.body.appendChild(r),r.submit(),t},getUrlParser:function(e){var t=document.createElement("a");return t.href=e,t},getHostnameFromUrl:function(e){return c.getUrlParser(e).hostname},isMessageFromHpp:function(e,t){return c.getHostnameFromUrl(e)===c.getHostnameFromUrl(t)},receiveMessage:function(t){if(c.isMessageFromHpp(t.event.origin,n)){var i;if(t.event.data&&(i=c.decodeAnswer(t.event.data)).iframe){if(!s()){var o,r=i.iframe.width,a=i.iframe.height,l=!1;if(o=t.embedded?t.instance.getIframe():document.getElementById("rxp-frame-"+A),t.instance.events&&t.instance.events.onResize&&t.instance.events.onResize(i.iframe),"390px"===r&&"440px"===a&&(o.setAttribute("width",r),o.setAttribute("height",a),l=!0),o.style.backgroundColor="#ffffff",d){if(o.style.marginLeft="0px",o.style.WebkitOverflowScrolling="touch",o.style.overflowX="scroll",o.style.overflowY="scroll",!t.embedded){var g=document.getElementById("rxp-overlay-"+A);g.style.overflowX="scroll",g.style.overflowY="scroll"}}else!t.embedded&&l&&(o.style.marginLeft=parseInt(r.replace("px",""),10)/2*-1+"px");!t.embedded&&l&&setTimeout(function(){document.getElementById("rxp-frame-close-"+A).style.marginLeft=parseInt(r.replace("px",""),10)/2-7+"px"},200)}}else{var u=function(){s()&&e?e.close():t.instance.close();var n=document.getElementById("rxp-overlay-"+A);n&&n.remove()},h=t.event.data;if("function"==typeof t.url){var I=c.decodeAnswer(h);return void t.url(I,u)}u();var m=document.createElement("form");m.setAttribute("method","POST"),m.setAttribute("action",t.url),m.appendChild(c.createFormHiddenInput("hppResponse",h)),document.body.appendChild(m),m.submit()}}}},l=function(){function t(){var t,n,A,i,o,r=c.checkDevicesOrientation();return d&&window.addEventListener&&window.addEventListener("orientationchange",function(){r=c.checkDevicesOrientation()},!1),{lightbox:function(){if(s())e=c.openWindow(o);else{t=c.createOverlay();var r=c.createIFrame(t,o);n=r.spinner,A=r.iFrame,i=r.closeButton}},close:function(){c.closeModal()},setToken:function(e){o=e}}}var n;return{getInstance:function(e){return n||(n=t()),n.setToken(e),n},init:function(e,t,n){var A=l.getInstance(n);"autoload"===e?A.lightbox():document.getElementById(e).addEventListener?document.getElementById(e).addEventListener("click",A.lightbox,!0):document.getElementById(e).attachEvent("onclick",A.lightbox),c.removeOldEvtMsgListener();var i=function(e){return c.receiveMessage({event:e,instance:A,url:t,embedded:!1})};c.evtMsg.push({fct:i,opt:!1}),c.addEvtMsgListener(i)}}}(),g=function(){function e(){var e,t;return{embedded:function(){var n=c.createForm(document,t);e&&(e.contentWindow.document.body?e.contentWindow.document.body.appendChild(n):e.contentWindow.document.appendChild(n),n.submit(),e.style.display="inherit")},close:function(){e.style.display="none"},setToken:function(e){t=e},setIframe:function(t){e=document.getElementById(t)},getIframe:function(){return e}}}var t;return{getInstance:function(n){return t||(t=e()),t.setToken(n),t},init:function(e,t,n,A,i){var o=g.getInstance(A);o.events=i,o.setIframe(t),"autoload"===e?o.embedded():document.getElementById(e).addEventListener?document.getElementById(e).addEventListener("click",o.embedded,!0):document.getElementById(e).attachEvent("onclick",o.embedded),c.removeOldEvtMsgListener();var r=function(e){return c.receiveMessage({event:e,instance:o,url:n,embedded:!0})};c.evtMsg.push({fct:r,opt:!1}),c.addEvtMsgListener(r)}}}(),u=function(){function e(){var e,t=c.checkDevicesOrientation();return d&&window.addEventListener&&window.addEventListener("orientationchange",function(){t=c.checkDevicesOrientation()},!1),{redirect:function(){var t=c.createForm(document,e,!0);document.body.append(t),t.submit()},setToken:function(t){e=t}}}var n;return{getInstance:function(t){return n||(n=e()),n.setToken(t),n},init:function(e,n,A){var i=u.getInstance(A);t=n,document.getElementById(e).addEventListener?document.getElementById(e).addEventListener("click",i.redirect,!0):document.getElementById(e).attachEvent("onclick",i.redirect),c.removeOldEvtMsgListener();var o=function(e){return c.receiveMessage({event:e,instance:i,url:n,embedded:!1})};c.evtMsg.push({fct:o,opt:!1}),c.addEvtMsgListener(o)}}}();return{init:l.init,lightbox:{init:l.init},embedded:{init:g.init},redirect:{init:u.init},setHppUrl:function(e){n=e},setMobileXSLowerBound:function(e){i=e},_internal:c}}(),RealexRemote=function(){"use strict";var e=function(e){if(!/^\d{4}$/.test(e))return!1;var t=parseInt(e.substring(0,2),10);parseInt(e.substring(2,4),10);return!(t<1||t>12)};return{validateCardNumber:function(e){if(!/^\d{12,19}$/.test(e))return!1;for(var t=0,n=0,A=0,i=!1,o=e.length-1;o>=0;o--)n=parseInt(e.substring(o,o+1),10),i?(A=2*n)>9&&(A-=9):A=n,t+=A,i=!i;return 0==t%10},validateCardHolderName:function(e){return!!e&&!!e.trim()&&!!/^[\u0020-\u007E\u00A0-\u00FF]{1,100}$/.test(e)},validateCvn:function(e){return!!/^\d{3}$/.test(e)},validateAmexCvn:function(e){return!!/^\d{4}$/.test(e)},validateExpiryDateFormat:e,validateExpiryDateNotInPast:function(t){if(!e(t))return!1;var n=parseInt(t.substring(0,2),10),A=parseInt(t.substring(2,4),10),i=new Date,o=i.getMonth()+1,r=i.getFullYear();return!(A<r%100||A===r%100&&n<o)}}}();
\ No newline at end of file
diff --git a/examples/hpp/json/process-a-payment.json b/examples/hpp/json/process-a-payment.json
index 68c1657..65f9409 100644
--- a/examples/hpp/json/process-a-payment.json
+++ b/examples/hpp/json/process-a-payment.json
@@ -1,8 +1,26 @@
 {
   "MERCHANT_ID": "heartlandgpsandbox",
-  "ACCOUNT": "hpp",
+  "ACCOUNT": "3dsecure",
   "AMOUNT": "1001",
   "CURRENCY": "EUR",
   "AUTO_SETTLE_FLAG": "1",
-  "PM_METHODS": "cards"
+  "PM_METHODS": "cards",
+
+  "HPP_CUSTOMER_EMAIL": "test@example.com",
+  "HPP_CUSTOMER_PHONENUMBER_MOBILE": "44|789456123",
+  "HPP_BILLING_STREET1": "Flat 123",
+  "HPP_BILLING_STREET2": "House 456",
+  "HPP_BILLING_STREET3": "Unit 4",
+  "HPP_BILLING_CITY": "Halifax",
+  "HPP_BILLING_POSTALCODE": "W5 9HR",
+  "HPP_BILLING_COUNTRY": "826",
+  "HPP_SHIPPING_STREET1": "Apartment 852",
+  "HPP_SHIPPING_STREET2": "Complex 741",
+  "HPP_SHIPPING_STREET3": "House 963",
+  "HPP_SHIPPING_CITY": "Chicago",
+  "HPP_SHIPPING_STATE": "IL",
+  "HPP_SHIPPING_POSTALCODE": "50001",
+  "HPP_SHIPPING_COUNTRY": "840",
+  "HPP_ADDRESS_MATCH_INDICATOR": "FALSE",
+  "HPP_CHALLENGE_REQUEST_INDICATOR": "NO_PREFERENCE"
 }
\ No newline at end of file
diff --git a/lib/rxp-hpp.js b/lib/rxp-hpp.js
index dcb798b..192ff75 100644
--- a/lib/rxp-hpp.js
+++ b/lib/rxp-hpp.js
@@ -363,15 +363,18 @@ var RealexHpp = (function () {
 				iFrame.style.transform = "scale(1)";
 				iFrame.style.backgroundColor = "#ffffff";
 
-				if (spinner.parentNode) {
+				if (spinner && spinner.parentNode) {
 					spinner.parentNode.removeChild(spinner);
 				}
 
 				closeButton = internal.createCloseButton();
-				overlayElement.appendChild(closeButton);
-				closeButton.addEventListener("click", function () {
-					internal.closeModal(closeButton, iFrame, spinner, overlayElement);
-				}, true);
+
+				if (overlayElement && closeButton) {
+					overlayElement.appendChild(closeButton);
+					closeButton.addEventListener("click", function () {
+						internal.closeModal(closeButton, iFrame, spinner, overlayElement);
+					}, true);
+				}
 			};
 
 			var form = internal.createForm(document, token);
diff --git a/package.json b/package.json
index 010f20b..a2c444d 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "rxp-js",
   "description": "The official Realex Payments JS Library",
-  "version": "1.4.0",
+  "version": "1.5.0",
   "homepage": "https://github.com/realexpayments/rxp-js",
   "author": {
     "name": "Realex Developer",