Since a few days we have a problem that the height-profile of a GPX-track is nog displayed anymore. Instead the error "d.split is not a function" is displayed (see attahced file). On "stackoverflow" the same problem has been reported. javascript - New Google Charts Error when clicking on row in table. Uncaught TypeError: b.split is not a function -- Has been working for several years - Stack Overflow

It looks like Google has changed something. I think that GPSTOOLS has to be modified to solve this problem.