Hi.
It is very interesting. I've checked on local Contao 2.9.5 with Firefox 7.0.1, capturing HTTP traffic between client and server.
With a larger file, HTTP request and reply without cokkie and set-cookie header field:
Code:
GET /contao/popup.php?src=tl_files/default.css&download=1 HTTP/1.1
Host: www.i.kisu.co.jp
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: ja,en-us;q=0.8,en;q=0.5,de;q=0.3
Accept-Encoding: gzip, deflate
Accept-Charset: ISO-2022-JP,utf-8;q=0.7,*;q=0.7
Connection: keep-alive
Referer: http://www.i.kisu.co.jp/contao/popup...es/default.css
HTTP/1.1 200 OK
Date: Fri, 04 Nov 2011 03:54:32 GMT
Server: Apache/2.2.19 (Unix)
X-Powered-By: PHP/5.3.6
Expires: 0
Cache-Control: must-revalidate, post-check=0, pre-check=0
Pragma: public
04-Nov-2011 13:54:32 GMT; path=/
Content-Transfer-Encoding: binary
Content-Disposition: attachment; filename="default.css"
Content-Length: 7894
Keep-Alive: timeout=15, max=97
Connection: Keep-Alive
Content-Type: text/css;charset=utf-8
With a smaller file:
Code:
GET /contao/popup.php?src=tl_files/tinymce.css&download=1 HTTP/1.1
Host: www.i.kisu.co.jp
User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: ja,en-us;q=0.8,en;q=0.5,de;q=0.3
Accept-Encoding: gzip, deflate
Accept-Charset: ISO-2022-JP,utf-8;q=0.7,*;q=0.7
Connection: keep-alive
Referer: http://www.i.kisu.co.jp/contao/popup...es/tinymce.css
HTTP/1.1 303 See Other
Date: Fri, 04 Nov 2011 03:58:51 GMT
Server: Apache/2.2.19 (Unix)
X-Powered-By: PHP/5.3.6
Expires: 0
Cache-Control: must-revalidate, post-check=0, pre-check=0
Pragma: public
04-Nov-2011 13:58:51 GMT; path=/
Content-Transfer-Encoding: binary
Content-Disposition: attachment; filename="tinymce.css"
Content-Length: 863
Location: http://www.i.kisu.co.jp/contao/popup...es/tinymce.css
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Content-Type: text/css;charset=utf-8
Difference is latter has Location header field so HTTP response changed to 303 (redirect...).
I wish this help to fix this problem.
Best regards.
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