When a client enables Web Security Service 9wss) on a machine, whether by sending traffic through to the tunnel, enabling the PAC file for Explicit Proxy, etc, some website content does not show up correctly in Internet Explorer. But in other browsers, the content will show just fine.
Internet Explorer
WSS
If the content shows up correctly in Chrome, Firefox or other browsers then the simple solution is to disable compatibility view in Internet Explorer. The content will display correctly after this.