Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The DataTransfer.mozSourceNode
property is used to determine the Node
over which the mouse cursor was located when the drag operation was initiated (for example, when a <button>
was clicked). For external drags or if the calling function cannot reach the node, null
is returned.
Note: This property is Firefox-specific.
This property is Read only .