When writing widgets for IBM Connections (version 1, 2, 3 and 4) and you have an iWidget (judgement still out on the OpenSocial gadget support) that needs to talk to other network resources than the IBM Connections server you need to change the proxy-config.tpl to work around the same origin policy restrictions imposed on JavaScript running in a browser. The change is easy enough and well documented but what do you do if you need to use a HTTP proxy for requests leaving your network? Well you use the passthrough proxy setting for the proxy (see ) to make sure that traffic passes through your HTTP proxy. The problem however is if you need to use a HTTP proxy to access resources external to your network but not to access internal resources since the setting is global and applies to all rules. So be warned and plan your network accordingly.
For the record there is a setting in Mashup Center to work around this (passthru_nonProxyHosts) but that setting hasn’t been implemented for IBM Connections unfortunately.
