urlObject.href

href 属性是完整的 URL 字符串，解析时将 protocol 和 host 组件都转换为小写。

【The href property is the full URL string that was parsed with both the protocol and host components converted to lower-case.】

例如：'http://user:pass@sub.example.com:8080/p/a/t/h?query=string#hash'。

【For example: 'http://user:pass@sub.example.com:8080/p/a/t/h?query=string#hash'.】