message: fix: iframe-bug-on-firefox
diff: @@ -94,8 +94,7 @@ export function getRelatedTarget(
  ) {
  const target = (event.target ?? event.currentTarget) as HTMLElement
  const activeElement = getActiveElement(target)
  - const originalTarget = (event as any).nativeEvent.explicitOriginalTarget
  - return (event.relatedTarget ?? originalTarget ?? activeElement) as HTMLElement
  + return (event.relatedTarget ?? activeElement) as HTMLElement
  }
  export function isRightClick(event: Pick<MouseEvent, "button">): boolean {
  