Can I fly to Hangzhou via Beijing and board the plane through the window?

Before boarding at the airport, you need to remove the pop-up window. When foreigners transit through Beijing airport, they need to contact the epidemic prevention personnel at the current location to cancel the pop-up window before they can go to the airport for transit. To enter Beijing airport, you need to have a healthy green code and a negative certificate of nucleic acid test report within 48 hours.