auth 属性是 URL 的用户名与密码部分。 该字符串跟在 protocol 和双斜杠(如果有)的后面,排在 host 部分的前面且被一个 ASCII 的 at 符号(@)分隔。 该字符的格式为 {username}[:{password}][:{password}] 部分是可选的。


The auth property is the username and password portion of the URL, also referred to as userinfo. This string subset follows the protocol and double slashes (if present) and precedes the host component, delimited by @. The string is either the username, or it is the username and password separated by :.

For example: 'user:pass'.