當使用statusCode時，jQuery $ .ajax在ie9/FF中失敗，修復？

Question

正在提交以下$ .ajax，它確實正在執行，但以靜默方式失敗，沒有任何錯誤。 IE9開發工具不會彈出錯誤，提琴手不會顯示流量。

由於「處理」位確實出現在屏幕上，我可以確認代碼確實執行了。但其餘的似乎只是失敗。我是而不是做x域。

$('.signupMsg').html("<img src='/assets/img/load-black.gif' /> Processing..."); 
var data = $('#emailForm').serialize(); 
$.ajax({ 
    url: 'https://example.com/proxy/emaillist', 
    type: 'POST', 
    data: data, 
    statusCode: { 
     200: function(msg) { 
      $('.signupBlock').html("&nbsp;<br><strong>Thank you!</strong><br>You will be hearing from us soon."); 
      $('#emailForm').remove(); 
     }, 
     500: function(msg) { 
      $('.signupBlock').html("&nbsp;<br><strong>Something went wrong.</strong><br>Sorry about that, please <a href='/'>refresh</a> and try again."); 
      $('#emailForm').remove(); 
     }, 
      404: function(msg) { 
        $('.signupBlock').html("&nbsp;<br><strong>Something went wrong.</strong><br>Sorry about that, please <a href='/'>refresh</a> and try again."); 
        $('#emailForm').remove(); 
      }, 
     503: function(msg) { 
      $('.signupBlock').html("&nbsp;<br><strong>Server temporarily down.</strong><br>Sorry about that, please <a href='/'>refresh</a> and try again."); 
      $('#emailForm').remove(); 
     }, 
     400: function(msg) { 
      $('.signupMsg').html("<span style='color:red'>Email validation failed, please try again.</span>"); 
     } 
    }     

}）;

使用jQ 1.7.2。該代碼在谷歌瀏覽器中運行良好，但在IE7-9和FF中失敗。舊版瀏覽器是否支持statusCode？

或者我應該切換到SuperAgent代碼響應支持？ http://visionmedia.github.com/superagent/

Answer 1

這不是一個修復jQuery，但它是一個AJAX調用的修復。

我只是切換到SuperAgent的，並得到了同樣的事情工作：

request 
.post('url/to/example') 
.send(data) 
.end(function(res){ 
    if(res.status==200) { 
     $('.signupBlock').html("&nbsp;<br><strong>Thank you!</strong><br>You will be hearing from us soon."); 
     $('#emailForm').remove();       
    } 
    if(res.status==500) { 
     $('.signupBlock').html("&nbsp;<br><strong>Something went wrong.</strong><br>Sorry about that, please <a href='/'>refresh</a> and try again."); 
     $('#emailForm').remove(); 
    } 
    if(res.status==404) { 
     $('.signupBlock').html("&nbsp;<br><strong>Something went wrong.</strong><br>Sorry about that, please <a href='/'>refresh</a> and try again."); 
     $('#emailForm').remove(); 
    } 
    if(res.status==503) { 
     $('.signupBlock').html("&nbsp;<br><strong>Server temporarily down.</strong><br>Sorry about that, please <a href='/'>refresh</a> and try again."); 
     $('#emailForm').remove(); 
    } 
    if(res.status==400) { 
     $('.signupMsg').html("<span style='color:red'>Email validation failed, please try again.</span>"); 
    } 
});