Through April 10, no animal protein will be allowed to appear on the menu of Burger King’s restaurant in Leicester Square, London. The iconic sandwich of the chain, the Whopper, as well as the children’s menu, will become totally vegan for the occasion. The chain is conducting the pop-up experiment to gauge expectations, as well as consumers’ preferences, in terms of alternatives to meat. It’s a story that has been buzzing in the British press for a few days now. And we can’t deny it, the initiative is intriguing. On the occasion of its reopening, the Burger King restaurant located in London’…