[英]jquery - Empty responseText in XMLHttpRequest object when server returns 500
I have to make SOAP calls from javascript between different domains.我必须在不同域之间从 javascript 进行 SOAP 调用。 On the server side there is a list of allowed domains, methods and headers which are included in the response by a filter.
在服务器端,有一个包含在过滤器响应中的允许域、方法和标头的列表。 It works well (even between different domains) when the response code is 200 but when an exception is thrown on the server side the xhr object has 0 status instead of 500 and the responseText is empty.
当响应代码为 200 时(即使在不同域之间),它也能很好地工作,但是当服务器端抛出异常时,xhr 对象的状态为 0 而不是 500,并且 responseText 为空。 When using on the same domain the status and the responseText is ok.
在同一个域上使用时,状态和 responseText 没问题。
The relevant code is as follows:相关代码如下:
function onError(xhr, status, thrownError) {
alert(xhr.status);
alert(xhr.responseText);
}
$.ajax({
type: "POST",
url: SOAPClient.Proxy,
dataType: "xml",
processData: false,
data: content,
context: context,
contentType : SOAPClient.ContentType + "; " + SOAPClient.CharSet,
error: onError,
success: onSuccess,
complete: onComplete,
beforeSend: function(req) {
req.setRequestHeader("Method", "POST");
req.setRequestHeader("Content-Length", SOAPClient.ContentLength);
req.setRequestHeader("SOAPServer", SOAPClient.SOAPServer);
req.setRequestHeader("SOAPAction", soapReq.Action);
}
});
I'm using jQuery-1.4.2.我正在使用 jQuery-1.4.2。 The allowed headers are "SOAPServer", "SOAPAction" and "Method".
允许的标头是“SOAPServer”、“SOAPAction”和“Method”。 I tried it in FF 3.6.10 and Google Chrome 7.0.517.36
我在 FF 3.6.10 和 Google Chrome 7.0.517.36 中尝试过
FF 3.6.8 returns an xhr.status === 0 when server replies with HTTP code if 301. The fix requires changeing httpSuccess function of $.ajax FF 3.6.8 在服务器回复 HTTP 代码时返回 xhr.status === 0 如果 301。修复需要更改 $.ajax 的 httpSuccess 函数
To fix this I changed the httpSuccess
of jQuery 1.4.2.为了解决这个问题,我更改了 jQuery 1.4.2 的
httpSuccess
。
original:原来的:
httpSuccess: function( xhr ) {
try {
// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
return !xhr.status && location.protocol === "file:" ||
// Opera returns 0 when status is 304
( xhr.status >= 200 && xhr.status < 300 ) ||
xhr.status === 304 || xhr.status === 1223 || xhr.status === 0;
} catch(e) {}
return false;
},
modified:修改的:
httpSuccess: function( xhr ) {
try {
// IE error sometimes returns 1223 when it should be 204 so treat it as success, see #1450
return !xhr.status && location.protocol === "file:" ||
// Opera returns 0 when status is 304
( xhr.status >= 200 && xhr.status < 300 ) ||
xhr.status === 304 || xhr.status === 1223 ||
( xhr.status === 0 && xhr.statusText.toUpperCase() === 'OK');
} catch(e) {}
return false;
},
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