У вашего броузера проблема в совместимости с HTML5
We've built many products that are particularly useful for our e-commerce partners to build, grow and monetize their apps. Successful e-commerce app developers are effectively incorporating Facebook Platform products to drive sign-ups, convert users into customers, spread the word, and generate more revenue— and over 85% of the top 100 grossing iOS and Android apps in the US are integrated with Facebook. Jackie Chang, a Strategic Partner Manager here at Facebook, talks through the products that will help serve your particular needs.