Colorado Fuel sold caustic soda to a buyer in Bombay under a CIF contract. The soda was fully loaded aboard a ship when a labor strike made it...

Colorado Fuel sold caustic soda to a buyer in Bombay under a CIF contract. The soda was fully loaded aboard a ship when a labor strike made it impossible for the vessel to sail. As a result, the soda arrived in Bombay 6 months late. The buyer sued for the late shipment. Was Colorado Fuel liable for the damages? Does it matter that Colorado Fuel may have known that a strike was imminent?