message: fix(popover): fix safari dismiss popover issue
diff: @@ -108,9 +108,9 @@ export class PopoverDirective implements OnInit, OnDestroy {
  ) {
  this._popover = cis
  .createLoader<PopoverContainerComponent>(
  - this._elementRef,
  + _elementRef,
  _viewContainerRef,
  - this._renderer
  + _renderer
  )
  .provide({provide: PopoverConfig, useValue: _config});
  @@ -121,9 +121,9 @@ export class PopoverDirective implements OnInit, OnDestroy {
  // fix: no focus on button on Mac OS #1795
  if (typeof window !== 'undefined') {
  - this._elementRef.nativeElement.addEventListener('click', function () {
  + _elementRef.nativeElement.addEventListener('click', function () {
  try {
  - this._elementRef.nativeElement.focus();
  + _elementRef.nativeElement.focus();
  } catch (err) {
  return;
  }
  