为什么我收到OPTIONS请求而不是GET请求? [英] Why am I getting an OPTIONS request instead of a GET request?

问题描述

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js" type="text/javascript"></script>
<script>
$.get("http://example.com/", function(data) {
     alert(data);
});
</script>

它对该URL进行OPTIONS请求，然后永远不调用回调函数.

it does an OPTIONS request to that URL, and then the callback is never called with anything.

当它不是跨网域时，就可以正常工作.

When it isn't cross domain, it works fine.

jQuery是否应该仅使用<script>节点进行调用，然后在加载时进行回调?我知道我将无法获得结果(因为它是跨域的)，但是没关系；我只想打通电话.这是一个错误，还是我做错了什么?

Shouldn't jQuery just make the call with a <script> node and then do the callback when its loaded? I understand that I won't be able to get the result (since it is cross domain), but that's OK; I just want the call to go through. Is this a bug, or am I doing something wrong?

推荐答案

选项来自 http://www.w3.org/TR/cors/参见

The OPTIONS is from http://www.w3.org/TR/cors/ See http://metajack.im/2010/01/19/crossdomain-ajax-for-xmpp-http-binding-made-easy/ for a bit more info

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