Nils Dagsson Moskopp ha scritto:
Am Freitag, den 12.12.2008, 20:36 +0100 schrieb Calogero Alex
Baldacchino:
The above (but the 'double check' I was suggesting) is about the way
Firefox (2.x and 3.0.4) behaves (both href="#foo%20bar" and, in a
different page, href="./example.html#foo%20bar" match id="foo bar"),
while IE7 and Opera 9.x perform an exact comparison, and show, in the
address bar, an url with eventual blank spaces, thus applying the
relaxation allowed by URL parsing rules, but not conforming to RFC 3986,
as a complete URI string.
Whenever I copypaste an URI from the address bar to any other program, I
am severely annoyed by this, especially when spaces (delimiters !) are
part of the fake-URI. A chat or office program, for example, is unable
to highlight the fake-URI anymore, (how could it ?), also pasting it
into source code can create all kind of validation errors. And whenever
I get a bastardized URI via chat or mail, only a part of it is
clickable.
Can someone from the web browser faction please state if there is any
data to support breaking RFC-compatibility ? Because as I see it, its
something that makes it appear nicer, but breaks whenever URIs are to be
transferred / communicated.
Actually I'm not from any faction, to be honest. I think a rationale for
that may be "people write strange things, both in address bars and in
html code", thus relaxing rules when parsing an URL is meaningful; but I
think when resolving and recomposing a whole URI the strictest rules
should be applied.
Getting to the problem mentioned here, the robustness principle says
that id="foo bar" should be accepted, but nevertheless invalid - because
a fragment with a space can never be part of an URI.
Indeed, that's not part of an URI, but a dereferenced component: when
splitting an URI into its components, there is no need to keep %-encoded
characters (RFC3986 says separated components can be decoded, thus,
AIUI, both href="#foo bar" and id="foo bar" respect to conformance
rules, but when resolving "#foo bar" into a complete, absolute URI, the
result should always look like
"http://example.org/something.html#foo%20bar"; to be conforming).
Regards,
Alex
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