Access-Control-Allow-Origin
XMLHttpRequest cannot load http://api.bing.com/qsonhs.aspx?q=a. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'file://' is therefore not allowed access.在这个课程中怎么解决啊。搜索中,都是提到在服务器代码中添加什么的!但是这里都没有服务器端代码。所以请问一下在这里怎么用原生JS解决?????