I am using RoS 4.1(on PC) + caching web-proxy (memory only) AND an upstream/parent proxy “squid 3.0/19” on a LINUX-box.
RoS-PC
web-proxy ------------DSL-connection to the web ---- LINUX+squid -------------- Internet
PPPoE
Usually, client of the RoS-PC works without problems, but there is a special, reproducable case:
When accessing http://finance.yahoo.com, get quote of any stock, go to the message board of that stock, and POST an answer to any message on the board, squid returns an error.
Clients use browser IE8, FF or Chrome, no difference.
Would be great, if anybody out there could confirm/negate this problem with totally diffenrent HW.