流星HTTP包 - 請求頭字段是不允許

Question

url = 'http://api.atompark.com/members/sms/xml.php' 
xml = 'some xml' 

當我使用jquery，一切都HONKY多莉：

$.ajax({ 
    method: 'POST', 
    url: url, 
    data: xml 
}).done(function(r) { 
    return log(r); 
}); 

但是當我使用HTTP包，我得到一個錯誤：

HTTP.post(url, { 
    data: xml 
}, function(e, r) { 
    return log(r.content); 
}); 

XMLHttpRequest cannot load http://api.atompark.com/members/sms/xml.php. Request header field Content-Type is not allowed by Access-Control-Allow-Headers in preflight response. 

什麼可能是錯的？

Answer 1

事實證明，我需要使用content代替data

HTTP.post(url, { 
    content: xml 
}, function(e, r) { 
    return log(r.content); 
}); 

https://forums.meteor.com/t/solved-http-package-request-header-field-is-not-allowed/18460

Answer 2

默認的ContentType是x-www-form-urlencoded。

嘗試從呼叫中指定內容類型。試試下面的代碼：

HTTP.post(url, { 
    data: xml, 
    headers: { "Content-Type": "application/xml"} 
}, callback);