RFC 6068, "The 'mailto' URI Scheme", October 2010Source of RFC: IETF - NON WORKING GROUP
Area Assignment: app
Errata ID: 4020
Reported By: NARUSE, Yui
Date Reported: 2014-06-23
Verifier Name: Barry Leiba
Date Verified: 2014-07-01
Section 2. says:
2. <obs-local-part> and <NO-WS-CTL> as defined in [RFC5322] MUST NOT be used.
It should say:
2. <obs-local-part> and <obs-NO-WS-CTL> as defined in [RFC5322] MUST NOT be used.
NO-WS-CTL doesn't exist in RFC5322; it was changed to obs-NO-WS-CTL.
A future update to "mailto" should consider other whitespace changes as well.