[squid-users] multiple requests from single URL on web page?

[Kevin Kretz]

Hi, 

I'm using external_acl_type to handle web traffic based on authenticated user and destination. I'm also passing the referer to the external acl. I know referer isn't to be relied on, but right off the bat I see two ACL queries for a single URL. One has a referrer and the other doesn't. 

Here's the acl line from my squid.conf: 

external_acl_type custom_acl_db cache=0 children-max=5 %ACL %DATA %ul %SRC %>rd %{Referer}>h (acl script name) 

Here's the HTML from a very simple page I'm accessing: 

< HTML > < HEAD > </ HEAD > < BODY > < IMG SRC =" [ view-source:http://upload.wikimedia.org/wikipedia/en/thumb/5/53/Snoopy_Peanuts.png/200px-Snoopy_Peanuts.png | http://domain1.com/image1.png ] "> < BR > < IMG SRC =" [ view-source:http://static.rgscdn.com/images/xl/702021.jpg | http://domain2.com/image2.jpg ] "> </ BODY > </ HTML > 

When I access that page through squid, I see one image's URL once, with no referrer, and the other one two times - once with a referrer and once without: 

CustomAclDB - kevin 172.18.127.4 domain2.com [ http://(web/ | http://server_hosting_test_page ] /test/ 

CustomAclDB - kevin 172.18.127.4 domain1.com - 

CustomAclDB - kevin 172.18.127.4 domain2.com - 


Why the inconsistency? 


Thanks 

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