Re: [Uri-review] Review request for payto URI scheme, draft 01

Larry Masinter <masinter@adobe.com> Fri, 13 April 2018 20:34 UTC

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From: Larry Masinter <masinter@adobe.com>
To: Florian Dold <florian.dold@inria.fr>
CC: "uri-review@ietf.org" <uri-review@ietf.org>
Thread-Topic: [Uri-review] Review request for payto URI scheme, draft 01
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Date: Fri, 13 Apr 2018 20:34:25 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/uri-review/ezaKt7LggwBx0iCFt6Oi5JsMSMo>
Subject: Re: [Uri-review] Review request for payto URI scheme, draft 01
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On // and /: 

RFC 7595 section 3.2:

   Schemes that are not intended for use with relative URIs SHOULD avoid
   use of the forward slash "/" character in order to avoid unintended
   processing, such as resolution of "." and ".." (dot segments).

   Schemes SHOULD avoid improper use of "//".  The use of double slashes
   in the first part of a URI is not a stylistic indicator that what
   follows is a URI: double slashes are intended for use ONLY when the
   syntax of the <scheme-specific-part> contains a hierarchical
   structure.  In URIs from such schemes, the use of double slashes
   indicates that what follows is the top hierarchical element for a
   naming authority (Section 3.2 of RFC 3986 has more details).  Schemes
   that do not contain a conformant hierarchical structure in their
   <scheme-specific-part> SHOULD NOT use double slashes following the
   "<scheme>:" string.

RFC 7595 Section 3.3


   While URIs might or might not be defined as locators in practice, a
   scheme definition itself MUST be clear as to how it is expected to
   function.  Schemes that are not intended to be used as locators
   SHOULD describe how the resource identified can be determined or
   accessed by software that obtains a URI of that scheme.


My point in citing 
    https://www.thepaypers.com/cross-border-ecommerce 
was to note that if you DID want to use a banking payment processor,
there isn't sufficient clarity as to how it is expected to function.