主题：[求助]启用了图片压缩功能后，新版ios系统好像报送失败的几率大增

function submitAjaxData(data,func,url,asyn,toast){
 var http=new XMLHttpRequest();
alert("0");//ok   1
 if(toast){
  var prg = document.getElementById(toast);
alert("x");
  if(prg){prg=prg.getElementsByClassName("weui_toast_content");}
  if(prg){
   var upload=http.upload;
alert("1");
   show(toast);
   upload.onprogress=function(e){
    prg[0].innerHTML = "已完成:" + parseInt(e.loaded/e.total*100) + "%";
   }
alert("2");
   upload.onload=function(e){
    hide(toast);
   }
  }
 }
 if (asyn !== false){
http.onreadystatechange =function(){
  //http.onload=function(){
alert("123");
   if (http.readyState==4 && http.status==200){
alert("11");   //4
    eval(func + "(http.responseText)");

alert("12");
   }
   else{
alert("13");
    eval(func + "(http.status.toString())");
   }
alert("14");
  }
alert("3");//ok  2
  http.onerror=function(){
alert("21");
   eval(func + "(http.status.toString())");
  }
  http.open("POST",url);
  http.send(data);
alert("4");//ok  3
 }
 else {
  http.open("POST",url,false);
alert("5");
  http.send(data);
  if (http.readyState==4 && http.status==200){
   if(func!=""){eval(func + "(http.responseText)");}
   else{return http.responseText}
  }
  else{
   if(func!=""){eval(func + "(http.status.toString())");}
   else{return http.status.toString()}   
  }
 } 
}

正常手机：

1-3-123-13-14-4-失败提示-123-13-14-123-13-14-123-11-12-14

iphoneX：0-3-123-13-14-4-失败提示