javascript - I think beforeSend function works incorrectly on chrome -


when send "async=false" request using ajax, possible show loading sign duration of response. , yes, alert message appears i've never seen loading sign.

by way, there no problem firefox. works in chrome when change async value true.

any idea?

var httputil = {  : function(url, onsuccess, onfailure) {     this.ajaxcall('get', url, this.defaultcontenttype, null, false, false, onsuccess, onfailure); },  post : function(url, request, onsuccess, onfailure) {     var showsuccessmsg = url.indexof('/filter') < 0;     this.ajaxcall('post', url, null, json.stringify(request), showsuccessmsg, true, onsuccess, onfailure); },  postformdata : function(url, request, onsuccess, onfailure) {     this.ajaxcall('post', url, false, request, true, true, onsuccess, onfailure); },  put : function(url, request, onsuccess, onfailure) {     this.ajaxcall('put', url, null, json.stringify(request), true, true, onsuccess, onfailure); },  delete : function(url, onsuccess, onfailure) {     this.ajaxcall('post', url, null, null, true, true, onsuccess, onfailure); },  ajaxcall : function(type, url, contenttype, request, showsuccessmsg, showloading, onsuccess, onfailure) {      if(contenttype == null){         contenttype = 'application/json';     }     $.ajax({         url: url,           type: type,          data: request,         async: false,         contenttype : contenttype,         processdata : false,         success: function(data) {             if(showsuccessmsg){                 showmessage.success("success!", function onconfirm(){                     onsuccess(data);                 });             }else{                 onsuccess(data);             }         },         error: function(error) {             if (onfailure instanceof function) {                 onfailure(error);             } else {                 if(error.responsejson){                     showmessage.error(error.responsejson.status, error.responsejson.message);                 }else{                     showmessage.error(json.stringify(error));                    }             }         },         beforesend : function() {             if(showloading){                 //$('.loading1').css("z-index","11111");                 $('.loading1').css("display","block");                 //alert("1");             }         },         complete : function() {             if(showloading){                 //$('.loading1').css("z-index","-1");                 $('.loading1').css("display","none");             }         }     }); }

};

try :

try adding delay of 1 ms in before send :

beforesend : function() {             if(showloading){                 //$('.loading1').css("z-index","11111");            settimeout(function(){              $('.loading1').css("display","block");            }, 1);                  //alert("1");             }         },

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