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fix(overlay-ref): check if parent node still exists before removing c… #1785

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fix(overlay-ref): check if parent node still exists before removing c… #1785

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4 changes: 3 additions & 1 deletion src/lib/core/overlay/overlay-ref.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,9 @@ export class OverlayRef implements PortalHost {
backdropToDetach.classList.remove('md-overlay-backdrop-showing');
backdropToDetach.classList.remove(this._state.backdropClass);
backdropToDetach.addEventListener('transitionend', () => {
backdropToDetach.parentNode.removeChild(backdropToDetach);
if(backdropToDetach.parentNode){
backdropToDetach.parentNode.removeChild(backdropToDetach);
}

// It is possible that a new portal has been attached to this overlay since we started
// removing the backdrop. If that is the case, only clear the backdrop reference if it
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