您好,我正在尝试 ajax 跨域调用,但标头有问题。我遵循了许多教程,但我无法让它工作。
这是我走了多远:
<html>
<head>
<meta http-equiv="Access-Control-Allow-Origin" content="*">
</head>
<body>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js" ></script>
<script>
jQuery.support.cors = true;
$(document).ready(function() {
//this would be done in a common script file if you are going to
//make a lot of these calls
$.ajaxSetup({ type: 'POST', dataType: 'json', contentType: 'application/json', data: {} });
$('#btn').click(function() {
//call the web service with the button is clicked
$.ajax({ url: 'url_external',
data: '{ "some_data:data" }', //ensure the data is enclosed in a quote
success: function (data) {
alert('here...success');
},
complete: function (data) {
alert('here');
}
});
//return false to avoid a postback
return false;
});
});
</script>
<div>
<button id='btn'>Load It</button>
<div id='sayit'></div>
</div>
</body>
</html>
而且这只适用于IE9。我错过了什么吗?在 Mozilla Firefox 和 Google Chrome 中,选项存在问题,并且405 Method not allowed