JS window.name跨域封装

function CrossDomainName(target, agent, callback, security) {if (typeof target !== 'string' || typeof agent !== 'string' || typeof callback !== 'function') {throw '参数错误';}this.state = 0;this.target = target;this.agent = agent;this.callback = callback || Function;this.security = security || true;this.iframe = document.createElement('iframe');var self = this;function onload() {if (self.state === 1) {var data = self.iframe.contentWindow.name;self.callback.call(self.iframe, data);if (self) {self.iframe.contentWindow.document.close();//关闭文档流self.iframe.contentWindow.close();//关闭Iframedocument.body.removeChild(self.iframe);//移除Iframe}} else if (self.state === 0) {self.state = 1;self.iframe.contentWindow.location = self.agent;}}if (document.attachEvent) {this.iframe.attachEvent('onload', onload);} else if (document.addEventListener) {this.iframe.addEventListener('load', onload, false);} else {this.iframe.onload = onload;}this.iframe.src = this.target;document.body.appendChild(this.iframe);}//调用new CrossDomainName('http://www.kingwell.com/kingwell.html', 'http://name.b.com/adfas.html', function (data) {alert(data);});

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