On Tue, 27 Dec 2011 11:21:37 +0100, feralert wrote:
On Tue, Dec 27, 2011 at 10:37 AM, Amos Jeffries
<squid3@xxxxxxxxxxxxx> wrote:
On Mon, 26 Dec 2011 18:21:25 +0100, feralert wrote:
Dear all,
Squid is not loading an advert in a web page frame which loads fine
when using a direct connection to the internet.
The versions used are 2.7.STABLE9-2.1 and 3.1.6-1.2 both in a
debian
squezze with default configuration)
The url the frame tries to load is:
http://frame.cool.com/ad-frame/#&ad_wrap=ad-1&ad_url=http://ad.doubleclick.net/adj/site011.opus/home;Slot=Leaderboard;Pos=Top;Page=home;LoggedIn=No;tile=1;sz=728x90;&ad_timestamp=13249166700149
In squids log file I only see a line for
'http://frame.cool.com/ad-frame/':
1324916528.019 5405 192.168.5.237 TCP_REFRESH_MISS/200 445 GET
http://frame.cool.com/ad-frame/ - DIRECT/67.228.247.179 text/html
But no sight of a
''http://ad.doubleclick.net/adj/site011.opus/hom"e
request.
If I load the page in my computer (with a direct connection to the
internet) and watch http traffic with the "http fox" firefox
extension, I can see both requests.
Hi Amos and all,
The browser appears to have a bug. You demonstrated only one URL.
"http://frame.cool.com/ad-frame/";
I forgot to mention that I tried loading the page with firefox,
chromium and IE and got the same results with all of them. And all of
them are able to load the page fine when using a direct connection to
the internet (without proxy).
The '#' character is reserved for browser internal use. On a page
view like
this the browsers move the top of the visible display area down to
the part
of the page labeled
"&ad_wrap=ad-1&ad_url=http://ad.doubleclick.net/adj/site011.opus/home;Slot=Leaderboard;Pos=Top;Page=home;LoggedIn=No;tile=1;sz=728x90;&ad_timestamp=13249166700149";.
That label is not itself a URL.
So... there is no second URL to Squid, unless there is a completely
separate
lookup triggered by something else you did not mention.
Even so, I see that my first message wasn't somehow displayed
properly
and might not be clear enough. Where it says 'But no sight of a ''"e
request.', I meant to say: 'But no sight of a
http://ad.doubleclick.net/adj/site011.opus/home request', meaning
that
there is a GET request for the first url but not for the second (as
seen when not using squid but a direct connection to the internet).
I have taken traces of the HTTP traffic with tcpdump, which I show
below. The first one is using squid 2.7, which fails to load the ad
and the second with the direct connection to the internet, which
works
flawlessly. As can be seen, when using squid, there is no data in the
reply from the server, whereas there is some in the reply to the same
request when using the direct connection, could the 'not requesting
second url' error be due to this ??
- Squid 2.7:
Host: frame.cool.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101
Firefox/10.0
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: es-es,es;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Proxy-Connection: keep-alive
Referer: http://www.cool.com/
Cookie: cool_all=24042dc2a0e328135316d197a53f45e8;
cool_l=%7B%22n%22%3A4%2C%22d%22%3A1%7D;
manifest=%7B%22pth%22%3A%7B%22rpge%22%3A%22home%22%7D%7D;
__qca=P0-613459998-1324917196001;
__utma=215533653.1105349504.1324917196.1324917196.1324917196.1;
__utmz=215533653.1324917196.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none);
__utmv=215533653.home
HTTP/1.0 200 OK
Server: nginx/1.0.4
Content-Type: text/html; charset=UTF-8
X-Powered-By: PHP/5.3.6
Expires: Tue, 27 Dec 2011 16:22:04 GMT
Last-Modified: Mon, 26 Dec 2011 16:22:04 GMT
Cache-Control: public, max-age=86400
Date: Mon, 26 Dec 2011 16:22:04 GMT
X-Varnish: 1092645737
Age: 6176
Content-Length: 0
X-Cache: HIT from coruscant
X-Cache-Lookup: HIT from coruscant:3128
Via: 1.1 varnish, 1.1 coruscant:3128 (squid/2.7.STABLE9)
Connection: keep-alive
Proxy-Connection: keep-alive
The last response Squid got for that URL was cacheable for 24hrs and
had no content. Squid is now serving that cached response until the 24hr
storage time expires.
Force a cache revalidation from the client (press Shift or Ctrl key
while clicking the refresh/relaod browser button).
Amos
