HTML is accessible from https://rawgit.com/jamesshannon/845b6821a180d45c99ee10de88501fe2/raw/warm.html
To use put the following into a WPT script: setActivityTimeout 5000 logData 0 navigate http://rawgit.com/jamesshannon/845b6821a180d45c99ee10de88501fe2/raw/warm.html logData 1 navigate https://landing.staging.lendingtree.com/lp/pla-amp.html
NB: Tabs are necessary between the command and the parameter.