Replace non-standard property
Replace non-standard property

event.path is not standardized and we already have `hasParent` that can check if a dom element has a certain parent.

hms-dbmi/4DN_matrix-viewer,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer