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RFC 3986, "Uniform Resource Identifier (URI): Generic Syntax", January 2005

Note: This RFC has been updated byRFC 7320, RFC 8820

Errata ID:5428
Status: Held for Document Update
Type: Technical
Publication Format(s) : TEXT
Reported By: Kevin Layer
Date Reported: 2018-07-17
Held for Document Update by: Andy Newton
Date Held: 2025-11-01

Section 4.2 says:

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

It should say:

      relative-part = "//" authority path-abempty                    / path-absolute                    / path-noscheme    / path-abempty    ; this was added                    / path-empty

Notes:

As written, the ABNF excludes "/" being a valid URI. It is hard to believe that href="/" when converted to a URI, would be illegal.

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