TypeError: 'append' called on an object that does not implement interface FormData
Need a correction for typo :)
proccessData:falseshould be
processData: falseTo avoid FormData errors make sure that the ajax options must be like
$.ajax({ url : "url", type: "POST", data : postData, processData: false, contentType: false, success:function(data, textStatus, jqXHR){ // }, error: function(jqXHR, textStatus, errorThrown){ //if fails }});