javascript - 没有协议(protocol)编写的 URL 的规则是什么？

Question

<分区>

Answer 1

这些称为协议(protocol)相关 URI。

解析规则详见RFC 3986 .

4.2. Relative Reference

A relative reference takes advantage of the hierarchical syntax (Section 1.2.3) to express a URI reference relative to the name space of another hierarchical URI.

  relative-ref  = relative-part [ "?" query ] [ "#" fragment ]

  relative-part = "//" authority path-abempty
                / path-absolute
                / path-noscheme
                / path-empty

第 5.4 节有示例。

5.4. Reference Resolution Examples

Within a representation with a well defined base URI of

  http://a/b/c/d;p?q

a relative reference is transformed to its target URI as follows.

  ...
  "//g"           =  "http://g"
  ...