This is the dramatic moment several pedestrians are knocked down by a powerful shockwave caused by a sudden explosion at a streetside restaurant. https://filedn.eu/lhVNGNsizwl5t7THnzzJ2c8/New%20public/AsiaWire-RestaurantBuilding-01.mp4 The incident reportedly occurred at a steak restaurant along Minchun Road in the Pudong district. In Shanghai, China's biggest city, on the evening of 11th January.…