[squid-users] failing https requests

[Adam Weremczuk]

Hi all,

I run squid-3.5.27_3 on pfSense 2.4.4 as well as in house Sugar CRM server.

Recently Sugar license validation and updates checks made to 
https://updates.sugarcrm.com/heartbeat/soap.php started failing (no 
changes made at our end).

In squid logs requests only produce 2 lines:

1587737506.670      0 192.168.5.30 TAG_NONE/400 4360 NONE 
error:invalid-request - HIER_NONE/- text/html
1587737506.978    301 192.168.5.30 TCP_MISS/301 464 POST 
http://updates.sugarcrm.com/heartbeat/soap.php - 
HIER_DIRECT/54.177.58.238 text/html

It looks like client error followed by a redirection to http.

Direct requests (no web proxy) as well as telnet, wget and curl work fine.

Could somebody explain what exactly the errors mean and why the requests 
fail?

Thanks,
Adam