when playing game blank screen is showing in webGL

I have build game with webGL and when I am playing the game blank screen is comming in place of scene. This is happening only on chrome but on firefox it is working. Also in other people system it is working fine only in my systems chrome it is comming as black page. Here is the screenshot of issue (https://www.screencast.com/t/VhywZor1). Please tell me how can I resolve this issue if I have proper graphics card in my system and I have also updated the chrome version.