To deploy collaboration tools and other interactive features, the website uses Strict XHTML and the Facebook-favored RDFa.
Older browsers, and especially versions of Internet Explorer prior to IE9, treat this embedded content as an ActiveX security risk.
To get around this, the site could be added to the Trusted Sites list, in Internet Options, using a Medium-Low or Low setting to ignore the supposed ActiveX issue.
Since ActiveX is the favored way to get Malware and viruses on your computer, don't just enable UNSIGNED ActiveX for regular internet use.
The latest versions of other browsers properly handle the embedded content and will have no problem showing it, even with high security settings.
The site attempts to support low bandwidth and restrictive browsers by disabling the maps.
The largest file size maps can be reenabled by adjusting the browser or browser extensions, to not restrict content.
Browser extensions often modify web pages and so may cause the maps to not appear.
Google Maps: In general, if the map won't load and appears frozen, then the issue is with either browser security settings or the firewall. The 'enhanced' IE9 security does not work well with embedded content.
To enable the Google Map and other external content, In Security Settings, enable 'Allow Websites to open windows without address bar or status windows', 'Display mixed content'.
Some security programs and third-party browser plug-ins are designed to modify webpage content and may interfere with the map display.
1.Open an Internet Explorer browser window and click Tools.
2. Select Internet Options.
3. Click the General tab, if it isn't already selected.
4.Click Delete Files.... under the heading "Temporary Internet files." Click OK to exit.
Versions of Internet Explorer prior to IE11 (and old versions of other browsers) offer less security and graphics capability, so should be upgraded.
Older browsers are typically used on older computers, which will choke on high-bandwidth content. Try running Google Chrome on any PC which is too old to run IE11.
Adjusting the Tools/Internet Options/Browsing History to increase the temp file disk space, and changing the page refresh setting to not refresh the data on each page load, may help older browsers.
All of the new features of this site require at least IE10, or the latest versions of Chrome, Safari, Firefox and other browsers.
Some effort has been made to ensure the site functions with older browsers, but the user experience will be very basic.
Sorry for any inconvenience technical issues may cause. Cross-browser compatibility is a constant effort.