EU companies can ban headscarves as long as it is a general prohibition that does not discriminate against employees, Europe’s top court said on Thursday, the latest ruling on an issue that has divided Europe for years. The case concerned a Muslim woman who was told she could not wear a headscarf when she applied to do a six-week work traineeship at a Belgian company. The firm said it has a neutrality rule, meaning no head covering is allowed on its premises, whether a cap, beanie or scarf. The woman took her grievance to a Belgian court, which subsequently sought advice from the Court of Just…