Event: originalTarget property
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
Note: This feature is available inWeb Workers.
The read-onlyoriginalTarget property of theEvent interface returns the original target of the event before any retargetings. UnlikeEvent.explicitOriginalTarget it can also be native anonymous content.
Specifications
This is a Mozilla-specific property and is not part of any current specification. It is not on track to become a standard.