A far-right proposal to ban facial coverings in Switzerland was headed toward a narrow victory in a binding referendum yesterday viewed as a test of attitudes toward Muslims. Projections for broadcaster SRF, based on partial results, showed the measure passing 52% to 48%, with a two-point margin for error. Final results were due later on the day. The proposal under the Swiss system of direct democracy does not mention Islam directly and also aims to stop violent street protesters from wearing masks. France, Denmark, Austria, the Netherlands and Bulgaria have full or partial bans on wearing face coverings in public.