Re: URL not following some 302 redirects after recent changes

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> Sometime after 2006-10-26 URL redirects stopped working correctly
>> (Emacs CVS of 2006-09-19 and 2006-10-26 works, 2006-10-31 and
>> 2006-11-19 don't work), perhaps due to changes made in revision 1.36
>> of url-http.el.
>> 
>> For example, <http://www.cliki.net/cliki> returns the following
>> headers, but `url-retrieve' runs the callback function instead of
>> first retrieving the new location:
>> 
>> HTTP/1.0 302 Redirected
>> Date: Fri, 17 Nov 2006 17:50:59 GMT
>> Server: Araneida/0.84
>> Connection: close
>> Content-Type: text/html
>> Last-Modified: Fri, 17 Nov 2006 17:50:59 GMT
>> Location: http://www.cliki.net/CLiki
>> Pragma: no-cache
>> Expires: Fri, 30 Oct 1998 14:19:41 GMT
>> 
>> The above-mentioned working versions retrieve the redirected URL
>> correctly.

> This seems to be the original intention.  There is a comment in
> url-http.el:

>     ;; If the 301|302 status code is received in response to a
>     ;; request other than GET or HEAD, the user agent MUST NOT
>     ;; automatically redirect the request unless it can be
>     ;; confirmed by the user, since this might change the
>     ;; conditions under which the request was issued.

> So it appears that it is up to the url client to resolve a 302
> redirect manually.

I'm not sure I understand: the comment only talks about requests other than
GET or HEAD.  From what I can tell the OP's request was a GET, so the
comment shouldn't apply, right?


        Stefan "trying to understand what's going on so as to write
                something useful in the NEWS file"