ajax 跨域问题，一会可以，一会有以下提示

XMLHttpRequest cannot load http://xxxxxx.xxx.xxx:10054/ckwebservice/n_ckwebservice.asmx/getwflowlistdata. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://127.0.0.1:8020' is therefore not allowed access." /ky/tab-webview-subpage-flow.html (0)
请问如何解决？