How-to: Adjust Security for Mixed Content and Frames
Adjusting your web-browser security settings If at any stage browsing the web you are presented with a blank page, you may need to refresh your browser's cache by pressing the Control and F5 keys. Failing that, different web browser software may require additional steps to adjust the security settings. Please consider carefully your need to apply this on any other websites. 'Mixed content' and frames If you can rule out any firewall or site blocking issues, you may find the problem comes from embedded content from third-party sites -in particular the dreaded iframes . Your web-browser software may be overcautious in it's treatment of 'mixed content'.