test if path exist with ghost clicks events

[eskan]

This PR add a test to the path var which can be undefined on some ghost click ( cordova/IOS ) and cause double click.
this catch have been done already in 2.x
It seems many issues can be related to this, difficult to say as behavior depends on target.

[googlebot]

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[eskan]

update emails addresses for cla

[googlebot]

CLAs look good, thanks!

[eskan]

Please take a look to this so very old PR .. it's simple .. it's already done in 2.0