Virtual finger hangs

context is ubuntu 19.04 and firefox in full screen

dealing with mouse v1-168 is having virtual finger trace analysis stuck fairly often when the path is not easy to discriminate

to recover i press esc, firefox asks if want to stop a slow script, stopping it loses the view and i have to reload the page to get back to a normal view

traces are ok up to the last one, the stuck one is lost

when things are fine it takes few seconds to settle the trace, it may be safe to just abort the script after five to ten seconds and drop the trace, this way the user can retry without strange tricks to survive

Will check this out. Thanks, devo.