Finishing off Share Target

Question

I have the following share target that gets hit when receiving a share from IE.  When I try to close the app it claims that the share has not completed, even though the function and the task have completed.  What am I missing to finish the share?

void App::OnShareTargetActivated(ShareTargetActivatedEventArgs^ args)
{
	auto share_op = args->ShareOperation;
	if (share_op->Data->Contains(StandardDataFormats::Uri))
	{
		concurrency::create_task(share_op->Data->GetUriAsync()).then([](Uri^ uri){
			auto absolute = uri->AbsoluteUri;
			std::wstring str(absolute->Data(), absolute->Length());
		});
	}
	else if (share_op->Data->Contains(StandardDataFormats::Html))
	{
		concurrency::create_task(share_op->Data->GetHtmlFormatAsync()).then([](String^ html){
			std::wstring str(html->Data(), html->Length());
		});
	}

}