Added the conditional typeof layer==='undefined'. This ensures that layer is correctly assigned to the line object that is made available by the addLine callback in the GPX use-case. Previously there was only a check for null, which prevented the correct assignment to the layer that is assigned the mouseover.
With the correct assignment, mouseover is now triggered on the line and the corresponding point in the elevation diagram is indicated.
Added the conditional
typeof layer==='undefined'. This ensures thatlayeris correctly assigned to thelineobject that is made available by theaddLinecallback in the GPX use-case. Previously there was only a check fornull, which prevented the correct assignment to the layer that is assigned the mouseover.With the correct assignment,
mouseoveris now triggered on thelineand the corresponding point in the elevation diagram is indicated.Tested on a GPX file @ http://codepen.io/adg29/full/jAzpRo/