Travis: Initiating build for commit '70f689a3a25be735de30b6b99f544b2699b3a3d6' on branch 'master': Current behavior: we are tracking NO IE11 data at all, because DNT is enabled. After the commit: because IE11 has DNT enabled by default, thanks to silly microsoft people, we will ignore the DNT header for these IE11 users... fixes #4482