我试图通过jQuery来加载XML数据的获取方法。该XML源位于以下网址: http://webservices.nextbus.com/service/publicXMLFeed?command=routeList&a=mbta跨域XMLHTTPRequest的错误
当我运行在浏览器下面的代码,我得到一个错误:
XMLHttpRequest cannot load http://webservices.nextbus.com/service/publicXMLFeed?command=routeList&a=mbta . Origin http://173.203.89.156 is not allowed by Access-Control-Allow-Origin.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<title>Bus Map</title>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0px; padding: 0px }
#map_canvas { height: 100% }
</style>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=true">
</script>
<script type="text/javascript" src=" https://ajax.googleapis.com/ajax/libs/jquery/1.5.0/jquery.min.js">
</script>
<script type="text/javascript">
$(document).ready(function() {
var myLatlng = new google.maps.LatLng(42.3966499, -71.12188);
var myOptions = {
zoom: 14,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
$.get('http://webservices.nextbus.com/service/publicXMLFeed?command=routeList&a=mbta', function(stops) {
alert(stops[0]);
})
});
</script>
</head>
<body>
<div id="map_canvas" style="width: 100%; height: 100%"></div>
</body>
</html>
是这一领域断然阻止所有的跨域XMLHTTPRequests,还是有绕过这个错误?
所以每次我做一个XHR请求以及引荐域和端口的时间必须是一样的吗?这是一个安全功能吗? – Adam 2011-02-08 20:09:26
@adam,是的,其中包括协议 – hvgotcodes 2011-02-08 20:11:17