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Re: Registering the about: URI scheme

From: Julian Reschke <julian.reschke@gmx.de>
Date: Tue, 27 Jan 2009 14:38:09 +0100
Message-ID: <497F0E41.5040409@gmx.de>
To: Lachlan Hunt <lachlan.hunt@lachy.id.au>
CC: Joseph A Holsten <joseph@josephholsten.com>, HTML WG <public-html@w3.org>

Lachlan Hunt wrote:
> ...
>   "If the application may use a document of MIME type 'text/html' and
>    character encoding 'UTF-8', about:blank SHOULD be represented with
>    an empty document."
> 
> I suggest you use the phrasing from my draft and add a reference to HTML5.

That will make it hard to publish the spec before HTML5, unless the 
reference is informative (is it?).

 > ...
> Julian Reschke wrote:
>> - "abouturi = "about:" segment" - restricting to segment sounds good,
>> but does this reflect reality?
> 
> Looking at the syntax from RFC 3986:
> 
> segment       = *pchar
> pchar         = unreserved / pct-encoded / sub-delims / ":" / "@"
> unreserved    = ALPHA / DIGIT / "-" / "." / "_" / "~"
> pct-encoded   = "%" HEXDIG HEXDIG
> sub-delims    = "!" / "$" / "&" / "'" / "(" / ")"
>                  / "*" / "+" / "," / ";" / "="
> 
> That doesn't look right.  Mozilla uses a query string for some [3], 
> which isn't permitted by that syntax.
> 
> I'm not sure about supporting percent encoding.  Testing with the URI 
> about:confi%67, these are the results:
> 
> Opera: The address bar changes to "opera:config", but still returns
>        an error.
> 
> Firefox: Says the URL is not valid.

If "about" is to be considered to be an URI scheme, these are bugs.

> ...

BR, Julian
Received on Tuesday, 27 January 2009 13:39:01 UTC

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