The valid characters are defined in RFC 7230 and RFC 3986

问题：IE11下请求报错

上面的图片中，我们明确看到这样一行Invalid character found in the request target. The valid characters are defined in RFC 7230 and RFC 3986，这句话的大致意思就是说请求头中包含了 RFC 7230 and RFC 3986规范中定义的非法字符。在这种情况下就会导致页面报400异常。

引发问题代码：

var url = "/pcms/booking/init.do?startTime=" + startTime + "&roomId=" + roomid+"&roomName="+roomName;
window.location.href = url;

其中roomName是中文。

解决问题：

在前端对前端URL进行编码，后台进行解码。

var url = "/pcms/booking/init.do?startTime=" + startTime + "&roomId=" + roomid+"&roomName="+encodeURI(encodeURI(roomName));
window.location.href = url;

roomName = URLDecoder.decode(roomName,"utf-8");

问题解决~