diff --git a/media/system/js/core-uncompressed.js b/media/system/js/core-uncompressed.js
index e21a2decc623d..3e3b7c4a34171 100644
--- a/media/system/js/core-uncompressed.js
+++ b/media/system/js/core-uncompressed.js
@@ -960,7 +960,7 @@ Joomla.editors.instances = Joomla.editors.instances || {
 					xhr.setRequestHeader('X-CSRF-Token', token);
 				}
 
-				if (!options.headers || !options.headers['Content-Type']) {
+				if (typeof(options.data) === 'string' && (!options.headers || !options.headers['Content-Type'])) {
 					xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
 				}
 			}
diff --git a/media/system/js/core.js b/media/system/js/core.js
index 0109c6d6fb17a..cb0e5a0051ca8 100644
--- a/media/system/js/core.js
+++ b/media/system/js/core.js
@@ -1 +1 @@
-Joomla=window.Joomla||{},Joomla.editors=Joomla.editors||{},Joomla.editors.instances=Joomla.editors.instances||{},function(e,t){"use strict";e.submitform=function(e,o,n){o||(o=t.getElementById("adminForm")),e&&(o.task.value=e),o.noValidate=!n,n?o.hasAttribute("novalidate")&&o.removeAttribute("novalidate"):o.setAttribute("novalidate","");var r=t.createElement("input");r.style.display="none",r.type="submit",o.appendChild(r).click(),o.removeChild(r)},e.submitbutton=function(t){e.submitform(t)},e.Text={strings:{},_:function(t,o){var n=e.getOptions("joomla.jtext");return n&&(this.load(n),e.loadOptions({"joomla.jtext":null})),o=void 0===o?"":o,t=t.toUpperCase(),void 0!==this.strings[t]?this.strings[t]:o},load:function(e){for(var t in e)e.hasOwnProperty(t)&&(this.strings[t.toUpperCase()]=e[t]);return this}},e.JText=e.Text,e.optionsStorage=e.optionsStorage||null,e.getOptions=function(t,o){return e.optionsStorage||e.loadOptions(),void 0!==e.optionsStorage[t]?e.optionsStorage[t]:o},e.loadOptions=function(o){if(!o){for(var n,r,a,i=t.querySelectorAll(".joomla-script-options.new"),s=0,l=0,d=i.length;l<d;l++)n=(r=i[l]).text||r.textContent,(a=JSON.parse(n))&&(e.loadOptions(a),s++),r.className=r.className.replace(" new"," loaded");if(s)return}if(e.optionsStorage){if(o)for(var c in o)o.hasOwnProperty(c)&&(e.optionsStorage[c]=o[c])}else e.optionsStorage=o||{}},e.replaceTokens=function(e){if(/^[0-9A-F]{32}$/i.test(e)){var o,n,r,a=t.getElementsByTagName("input");for(o=0,r=a.length;o<r;o++)"hidden"==(n=a[o]).type&&"1"==n.value&&32==n.name.length&&(n.name=e)}},e.isEmail=function(e){console.warn("Joomla.isEmail() is deprecated, use the formvalidator instead");return/^[\w.!#$%&‚Äô*+\/=?^`{|}~-]+@[a-z0-9-]+(?:\.[a-z0-9-]{2,})+$/i.test(e)},e.checkAll=function(e,t){if(!e.form)return!1;t=t||"cb";var o,n,r,a=0;for(o=0,r=e.form.elements.length;o<r;o++)(n=e.form.elements[o]).type==e.type&&0===n.id.indexOf(t)&&(n.checked=e.checked,a+=n.checked?1:0);return e.form.boxchecked&&(e.form.boxchecked.value=a),!0},e.renderMessages=function(o){e.removeMessages();var n,r,a,i,s,l,d,c=t.getElementById("system-message-container");for(n in o)if(o.hasOwnProperty(n)){r=o[n],a=t.createElement("div"),d="notice"===n?"alert-info":"alert-"+n,d="message"===n?"alert-success":d,d="error"===n?"alert-error alert-danger":d,a.className="alert "+d;var u=t.createElement("button");for(u.setAttribute("type","button"),u.setAttribute("data-dismiss","alert"),u.className="close",u.innerHTML="×",a.appendChild(u),void 0!==e.JText._(n)&&((i=t.createElement("h4")).className="alert-heading",i.innerHTML=e.JText._(n),a.appendChild(i)),s=r.length-1;s>=0;s--)(l=t.createElement("div")).innerHTML=r[s],a.appendChild(l);c.appendChild(a)}},e.removeMessages=function(){for(var e=t.getElementById("system-message-container");e.firstChild;)e.removeChild(e.firstChild);e.style.display="none",e.offsetHeight,e.style.display=""},e.ajaxErrorsMessages=function(t,o,n){var r={};if("parsererror"===o){for(var a=t.responseText.trim(),i=[],s=a.length-1;s>=0;s--)i.unshift(["&#",a[s].charCodeAt(),";"].join(""));a=i.join(""),r.error=[e.JText._("JLIB_JS_AJAX_ERROR_PARSE").replace("%s",a)]}else"nocontent"===o?r.error=[e.JText._("JLIB_JS_AJAX_ERROR_NO_CONTENT")]:"timeout"===o?r.error=[e.JText._("JLIB_JS_AJAX_ERROR_TIMEOUT")]:"abort"===o?r.error=[e.JText._("JLIB_JS_AJAX_ERROR_CONNECTION_ABORT")]:t.responseJSON&&t.responseJSON.message?r.error=[e.JText._("JLIB_JS_AJAX_ERROR_OTHER").replace("%s",t.status)+" <em>"+t.responseJSON.message+"</em>"]:t.statusText?r.error=[e.JText._("JLIB_JS_AJAX_ERROR_OTHER").replace("%s",t.status)+" <em>"+t.statusText+"</em>"]:r.error=[e.JText._("JLIB_JS_AJAX_ERROR_OTHER").replace("%s",t.status)];return r},e.isChecked=function(e,o){if(void 0===o&&(o=t.getElementById("adminForm")),o.boxchecked.value=e?parseInt(o.boxchecked.value)+1:parseInt(o.boxchecked.value)-1,o.elements["checkall-toggle"]){var n,r,a,i=!0;for(n=0,a=o.elements.length;n<a;n++)if("checkbox"==(r=o.elements[n]).type&&"checkall-toggle"!=r.name&&!r.checked){i=!1;break}o.elements["checkall-toggle"].checked=i}},e.popupWindow=function(e,t,o,n,r){console.warn("Joomla.popupWindow() is deprecated without a replacement!");var a=(screen.width-o)/2,i="height="+n+",width="+o+",top="+(screen.height-n)/2+",left="+a+",scrollbars="+r+",resizable";window.open(e,t,i).window.focus()},e.tableOrdering=function(o,n,r,a){void 0===a&&(a=t.getElementById("adminForm")),a.filter_order.value=o,a.filter_order_Dir.value=n,e.submitform(r,a)},window.writeDynaList=function(e,o,n,r,a,i){console.warn("window.writeDynaList() is deprecated without a replacement!");for(var s=t.createElement("select"),l=e.split(" "),d=0;d<l.length;d++){var c=l[d].split("=");"on"!==c[0].trim().substr(0,2).toLowerCase()&&"href"!==c[0].trim().toLowerCase()&&s.setAttribute(c[0],c[1].replace(/\"/g,""))}var u,m,p,h=n==r;for(u=0;u<o.length;u++)if((p=o[u])[0]==n){m=h?a==p[1]:0===u;var f=t.createElement("option");f.setAttribute("value",p[1]),f.innerText=p[2],m&&f.setAttribute("selected","selected"),s.appendChild(f)}i?i.appendChild(s):t.body.appendChild(s)},window.changeDynaList=function(e,o,n,r,a){console.warn("window.changeDynaList() is deprecated without a replacement!");for(var i,s,l,d,c=t.adminForm[e],u=n==r;c.firstChild;)c.removeChild(c.firstChild);i=0;for(s in o)o.hasOwnProperty(s)&&(l=o[s])[0]==n&&((d=new Option).value=l[1],d.text=l[2],(u&&a==d.value||!u&&0===i)&&(d.selected=!0),c.options[i++]=d);c.length=i},window.radioGetCheckedValue=function(e){if(console.warn("window.radioGetCheckedValue() is deprecated without a replacement!"),!e)return"";var t,o=e.length;if(void 0===o)return e.checked?e.value:"";for(t=0;t<o;t++)if(e[t].checked)return e[t].value;return""},window.getSelectedValue=function(e,o){console.warn("window.getSelectedValue() is deprecated without a replacement!");var n=t[e][o],r=n.selectedIndex;return null!==r&&r>-1?n.options[r].value:null},window.listItemTask=function(t,o){return console.warn("window.listItemTask() is deprecated use Joomla.listItemTask() instead"),e.listItemTask(t,o)},e.listItemTask=function(e,o){var n,r=t.adminForm,a=0,i=r[e];if(!i)return!1;for(;n=r["cb"+a];)n.checked=!1,a++;return i.checked=!0,r.boxchecked.value=1,window.submitform(o),!1},window.submitbutton=function(t){console.warn("window.submitbutton() is deprecated use Joomla.submitbutton() instead"),e.submitbutton(t)},window.submitform=function(t){console.warn("window.submitform() is deprecated use Joomla.submitform() instead"),e.submitform(t)},window.saveorder=function(e,t){console.warn("window.saveorder() is deprecated without a replacement!"),window.checkAll_button(e,t)},window.checkAll_button=function(o,n){var r,a;for(console.warn("window.checkAll_button() is deprecated without a replacement!"),n=n||"saveorder",r=0;r<=o;r++){if(!(a=t.adminForm["cb"+r]))return void alert("You cannot change the order of items, as an item in the list is `Checked Out`");a.checked=!0}e.submitform(n)},e.loadingLayer=function(o,n){if(o=o||"show",n=n||t.body,"load"===o){var r=(e.getOptions("system.paths")||{}).root||"",a=t.createElement("div");a.id="loading-logo",a.style.position="fixed",a.style.top="0",a.style.left="0",a.style.width="100%",a.style.height="100%",a.style.opacity="0.8",a.style.filter="alpha(opacity=80)",a.style.overflow="hidden",a.style["z-index"]="10000",a.style.display="none",a.style["background-color"]="#fff",a.style["background-image"]='url("'+r+'/media/jui/images/ajax-loader.gif")',a.style["background-position"]="center",a.style["background-repeat"]="no-repeat",a.style["background-attachment"]="fixed",n.appendChild(a)}else t.getElementById("loading-logo")||e.loadingLayer("load",n),t.getElementById("loading-logo").style.display="show"==o?"block":"none";return t.getElementById("loading-logo")},e.extend=function(e,t){for(var o in t)t.hasOwnProperty(o)&&(e[o]=t[o]);return e},e.request=function(t){(t=e.extend({url:"",method:"GET",data:null,perform:!0},t)).method=t.data?"POST":t.method.toUpperCase();try{var o=window.XMLHttpRequest?new XMLHttpRequest:new ActiveXObject("MSXML2.XMLHTTP.3.0");if(o.open(t.method,t.url,!0),o.setRequestHeader("X-Requested-With","XMLHttpRequest"),o.setRequestHeader("X-Ajax-Engine","Joomla!"),"POST"===t.method){var n=e.getOptions("csrf.token","");n&&o.setRequestHeader("X-CSRF-Token",n),t.headers&&t.headers["Content-Type"]||o.setRequestHeader("Content-Type","application/x-www-form-urlencoded")}if(t.headers)for(var r in t.headers)t.headers.hasOwnProperty(r)&&o.setRequestHeader(r,t.headers[r]);if(o.onreadystatechange=function(){4===o.readyState&&(200===o.status?t.onSuccess&&t.onSuccess.call(window,o.responseText,o):t.onError&&t.onError.call(window,o))},t.perform){if(t.onBefore&&!1===t.onBefore.call(window,o))return o;o.send(t.data)}}catch(e){return window.console&&console.log(e),!1}return o}}(Joomla,document);
\ No newline at end of file
+Joomla=window.Joomla||{};Joomla.editors=Joomla.editors||{};Joomla.editors.instances=Joomla.editors.instances||{};(function(Joomla,document){"use strict";Joomla.submitform=function(task,form,validate){if(!form){form=document.getElementById("adminForm")}if(task){form.task.value=task}form.noValidate=!validate;if(!validate){form.setAttribute("novalidate","")}else if(form.hasAttribute("novalidate")){form.removeAttribute("novalidate")}var button=document.createElement("input");button.style.display="none";button.type="submit";form.appendChild(button).click();form.removeChild(button)};Joomla.submitbutton=function(pressbutton){Joomla.submitform(pressbutton)};Joomla.Text={strings:{},_:function(key,def){var newStrings=Joomla.getOptions("joomla.jtext");if(newStrings){this.load(newStrings);Joomla.loadOptions({"joomla.jtext":null})}def=def===undefined?"":def;key=key.toUpperCase();return this.strings[key]!==undefined?this.strings[key]:def},load:function(object){for(var key in 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i=encodedJson.length-1;i>=0;i--){buf.unshift(["&#",encodedJson[i].charCodeAt(),";"].join(""))}encodedJson=buf.join("");msg.error=[Joomla.JText._("JLIB_JS_AJAX_ERROR_PARSE").replace("%s",encodedJson)]}else if(textStatus==="nocontent"){msg.error=[Joomla.JText._("JLIB_JS_AJAX_ERROR_NO_CONTENT")]}else if(textStatus==="timeout"){msg.error=[Joomla.JText._("JLIB_JS_AJAX_ERROR_TIMEOUT")]}else if(textStatus==="abort"){msg.error=[Joomla.JText._("JLIB_JS_AJAX_ERROR_CONNECTION_ABORT")]}else if(xhr.responseJSON&&xhr.responseJSON.message){msg.error=[Joomla.JText._("JLIB_JS_AJAX_ERROR_OTHER").replace("%s",xhr.status)+" <em>"+xhr.responseJSON.message+"</em>"]}else if(xhr.statusText){msg.error=[Joomla.JText._("JLIB_JS_AJAX_ERROR_OTHER").replace("%s",xhr.status)+" <em>"+xhr.statusText+"</em>"]}else{msg.error=[Joomla.JText._("JLIB_JS_AJAX_ERROR_OTHER").replace("%s",xhr.status)]}return msg};Joomla.isChecked=function(isitchecked,form){if(typeof form==="undefined"){form=document.getElementById("adminForm")}form.boxchecked.value=isitchecked?parseInt(form.boxchecked.value)+1:parseInt(form.boxchecked.value)-1;if(!form.elements["checkall-toggle"])return;var c=true,i,e,n;for(i=0,n=form.elements.length;i<n;i++){e=form.elements[i];if(e.type=="checkbox"&&e.name!="checkall-toggle"&&!e.checked){c=false;break}}form.elements["checkall-toggle"].checked=c};Joomla.popupWindow=function(mypage,myname,w,h,scroll){console.warn("Joomla.popupWindow() is deprecated without a replacement!");var winl=(screen.width-w)/2,wint=(screen.height-h)/2,winprops="height="+h+",width="+w+",top="+wint+",left="+winl+",scrollbars="+scroll+",resizable";window.open(mypage,myname,winprops).window.focus()};Joomla.tableOrdering=function(order,dir,task,form){if(typeof form==="undefined"){form=document.getElementById("adminForm")}form.filter_order.value=order;form.filter_order_Dir.value=dir;Joomla.submitform(task,form)};window.writeDynaList=function(selectParams,source,key,orig_key,orig_val,element){console.warn("window.writeDynaList() is deprecated without a replacement!");var select=document.createElement("select");var params=selectParams.split(" ");for(var l=0;l<params.length;l++){var par=params[l].split("=");if(par[0].trim().substr(0,2).toLowerCase()==="on"||par[0].trim().toLowerCase()==="href"){continue}select.setAttribute(par[0],par[1].replace(/\"/g,""))}var hasSelection=key==orig_key,i,selected,item;for(i=0;i<source.length;i++){item=source[i];if(item[0]!=key){continue}selected=hasSelection?orig_val==item[1]:i===0;var el=document.createElement("option");el.setAttribute("value",item[1]);el.innerText=item[2];if(selected){el.setAttribute("selected","selected")}select.appendChild(el)}if(element){element.appendChild(select)}else{document.body.appendChild(select)}};window.changeDynaList=function(listname,source,key,orig_key,orig_val){console.warn("window.changeDynaList() is deprecated without a replacement!");var list=document.adminForm[listname],hasSelection=key==orig_key,i,x,item,opt;while(list.firstChild)list.removeChild(list.firstChild);i=0;for(x in source){if(!source.hasOwnProperty(x)){continue}item=source[x];if(item[0]!=key){continue}opt=new Option;opt.value=item[1];opt.text=item[2];if(hasSelection&&orig_val==opt.value||!hasSelection&&i===0){opt.selected=true}list.options[i++]=opt}list.length=i};window.radioGetCheckedValue=function(radioObj){console.warn("window.radioGetCheckedValue() is deprecated without a replacement!");if(!radioObj){return""}var n=radioObj.length,i;if(n===undefined){return radioObj.checked?radioObj.value:""}for(i=0;i<n;i++){if(radioObj[i].checked){return radioObj[i].value}}return""};window.getSelectedValue=function(frmName,srcListName){console.warn("window.getSelectedValue() is deprecated without a replacement!");var srcList=document[frmName][srcListName],i=srcList.selectedIndex;if(i!==null&&i>-1){return srcList.options[i].value}else{return null}};window.listItemTask=function(id,task){console.warn("window.listItemTask() is deprecated use Joomla.listItemTask() instead");return Joomla.listItemTask(id,task)};Joomla.listItemTask=function(id,task){var f=document.adminForm,i=0,cbx,cb=f[id];if(!cb)return false;while(true){cbx=f["cb"+i];if(!cbx)break;cbx.checked=false;i++}cb.checked=true;f.boxchecked.value=1;window.submitform(task);return false};window.submitbutton=function(pressbutton){console.warn("window.submitbutton() is deprecated use Joomla.submitbutton() instead");Joomla.submitbutton(pressbutton)};window.submitform=function(pressbutton){console.warn("window.submitform() is deprecated use Joomla.submitform() instead");Joomla.submitform(pressbutton)};window.saveorder=function(n,task){console.warn("window.saveorder() is deprecated without a replacement!");window.checkAll_button(n,task)};window.checkAll_button=function(n,task){console.warn("window.checkAll_button() is deprecated without a replacement!");task=task?task:"saveorder";var j,box;for(j=0;j<=n;j++){box=document.adminForm["cb"+j];if(box){box.checked=true}else{alert("You cannot change the order of items, as an item in the list is `Checked Out`");return}}Joomla.submitform(task)};Joomla.loadingLayer=function(task,parentElement){task=task||"show";parentElement=parentElement||document.body;if(task==="load"){var systemPaths=Joomla.getOptions("system.paths")||{},basePath=systemPaths.root||"";var loadingDiv=document.createElement("div");loadingDiv.id="loading-logo";loadingDiv.style["position"]="fixed";loadingDiv.style["top"]="0";loadingDiv.style["left"]="0";loadingDiv.style["width"]="100%";loadingDiv.style["height"]="100%";loadingDiv.style["opacity"]="0.8";loadingDiv.style["filter"]="alpha(opacity=80)";loadingDiv.style["overflow"]="hidden";loadingDiv.style["z-index"]="10000";loadingDiv.style["display"]="none";loadingDiv.style["background-color"]="#fff";loadingDiv.style["background-image"]='url("'+basePath+'/media/jui/images/ajax-loader.gif")';loadingDiv.style["background-position"]="center";loadingDiv.style["background-repeat"]="no-repeat";loadingDiv.style["background-attachment"]="fixed";parentElement.appendChild(loadingDiv)}else{if(!document.getElementById("loading-logo")){Joomla.loadingLayer("load",parentElement)}document.getElementById("loading-logo").style["display"]=task=="show"?"block":"none"}return document.getElementById("loading-logo")};Joomla.extend=function(destination,source){for(var p in source){if(source.hasOwnProperty(p)){destination[p]=source[p]}}return destination};Joomla.request=function(options){options=Joomla.extend({url:"",method:"GET",data:null,perform:true},options);options.method=options.data?"POST":options.method.toUpperCase();try{var xhr=window.XMLHttpRequest?new XMLHttpRequest:new ActiveXObject("MSXML2.XMLHTTP.3.0");xhr.open(options.method,options.url,true);xhr.setRequestHeader("X-Requested-With","XMLHttpRequest");xhr.setRequestHeader("X-Ajax-Engine","Joomla!");if(options.method==="POST"){var token=Joomla.getOptions("csrf.token","");if(token){xhr.setRequestHeader("X-CSRF-Token",token)}if(typeof options.data==="string"&&(!options.headers||!options.headers["Content-Type"])){xhr.setRequestHeader("Content-Type","application/x-www-form-urlencoded")}}if(options.headers){for(var p in options.headers){if(options.headers.hasOwnProperty(p)){xhr.setRequestHeader(p,options.headers[p])}}}xhr.onreadystatechange=function(){if(xhr.readyState!==4)return;if(xhr.status===200){if(options.onSuccess){options.onSuccess.call(window,xhr.responseText,xhr)}}else if(options.onError){options.onError.call(window,xhr)}};if(options.perform){if(options.onBefore&&options.onBefore.call(window,xhr)===false){return xhr}xhr.send(options.data)}}catch(error){window.console?console.log(error):null;return false}return xhr}})(Joomla,document);