browser - 为什么浏览器有 3 个字符作为协议(protocol)分隔符？

Question

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9年前关闭。




http://与 http:

要么有一些历史原因，要么我错过了一些东西。

Answer 1

根据RFC 1738 ,

While the syntax for the rest of the URL may vary depending on theparticular scheme selected, URL schemes that involve the direct useof an IP-based protocol to a specified host on the Internet use acommon syntax for the scheme-specific data:

//user:password@host:port/url-path

Some or all of the parts "user:password@", ":password",":port", and "/url-path" may be excluded. The scheme specificdata start with a double slash "//" to indicate that it complies withthe common Internet scheme syntax.