Solved!
One simple option added to polyline and polygon properties:
Before:
var polyOptions = {
strokeColor: polylineColor,
strokeOpacity: polyLineOpacity,
strokeWeight: polyLineWidth
}
After:
var polyOptions = {
strokeColor: polylineColor,
strokeOpacity: polyLineOpacity,
strokeWeight: polyLineWidth,
clickable: false
}
Simple solution to a simple prob!
Enjoy!