SMW ♥ 303

How do I know? Here's the clue. Have a look at the log generated by Live HTTP headers (a Firefox add-on) below:

	01: http://localhost/wiki/index.php/Special:URIResolver/Mr_X
	02:
	03: GET /wiki/index.php/Special:URIResolver/Mr_X HTTP/1.1
	04: Host: localhost
	05: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.2.17) Gecko/20110420 Firefox/3.6.17
	06: Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
	07: Accept-Language: en-gb,en;q=0.5
	08: Accept-Encoding: gzip,deflate
	09: Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
	10: Keep-Alive: 65535
	11: Connection: keep-alive
	12: If-Modified-Since: Mon, 30 May 2011 15:02:24 GMT
	13:
	14: HTTP/1.1 303 See Other
	15: Date: Mon, 30 May 2011 15:08:38 GMT
	16: Server: Apache/2.2.17 (Win32) mod_ssl/2.2.17 OpenSSL/0.9.8o PHP/5.3.4 mod_perl/2.0.4 Perl/v5.10.1
	17: X-Powered-By: PHP/5.3.5
	18: Vary: Accept-Encoding,Cookie
	19: Expires: Thu, 01 Jan 1970 00:00:00 GMT
	20: Cache-Control: private, must-revalidate, max-age=0
	21: Last-Modified: Mon, 30 May 2011 15:08:38 GMT
	22: Location: http://localhost/wiki/index.php/Mr_X
	23: Content-Length: 0
	24: Keep-Alive: timeout=5, max=100
	25: Connection: Keep-Alive
	26: Content-Type: text/html; charset=utf-8
	27: ----------------------------------------------------------
	28: http://localhost/wiki/index.php/Mr_X
	29:
	30: GET /wiki/index.php/Mr_X HTTP/1.1
	31: Host: localhost
	32: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.2.17) Gecko/20110420 Firefox/3.6.17
	33: Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
	34: Accept-Language: en-gb,en;q=0.5
	35: Accept-Encoding: gzip,deflate
	36: Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
	37: Keep-Alive: 65535
	38: Connection: keep-alive
	39:
	40: HTTP/1.1 200 OK
	41: Date: Mon, 30 May 2011 15:08:38 GMT
	42: Server: Apache/2.2.17 (Win32) mod_ssl/2.2.17 OpenSSL/0.9.8o PHP/5.3.4 mod_perl/2.0.4 Perl/v5.10.1
	43: X-Powered-By: PHP/5.3.5
	44: Content-Language: en
	45: Vary: Accept-Encoding,Cookie
	46: Expires: Thu, 01 Jan 1970 00:00:00 GMT
	47: Cache-Control: private, must-revalidate, max-age=0
	48: Last-Modified: Mon, 30 May 2011 16:30:27 GMT
	49: Keep-Alive: timeout=5, max=99
	50: Connection: Keep-Alive
	51: Transfer-Encoding: chunked
	52: Content-Type: text/html; charset=UTF-8
	53: ----------------------------------------------------------

view raw 303 @ SMW.txt hosted with ❤ by GitHub

So, what does really happen?

1. I send a request to dereferencing the resource (any kind of resource) URI  @ line 3. I add a content negoitation stuff on the header like line 6.
2. The server gives a 303 response (yay!) @ line 14 and because I was asking for text/html content, the server gives a redirection to this location @ line 22.
3. I send a second request  @ line 30 to get the text/html content (information resource) to the location as specified on the server response.
4. I got a 200 @ line 40, voila! Now I could read the information describing the resource URI.