Is trailing comma allowed in utag_data javascript object? For example: var utag_data = { 'var1' : 'value1', 'var2' : 'value2',}

[ty_gavin]

Older IE Browsers will fail on a trailing comma.. http://stackoverflow.com/questions/201782/can-you-use-a-trailing-comma-in-a-json-object http://stackoverflow.com/questions/5036618/does-internet-explorer-9-choke-on-extra-commas-at-the-end...