rails open graph code example

Example 1: og meta tags not working rails

# config/meta.yml

meta_product_name: "Product Name"
meta_title: "Product name - Product tagline"
meta_description: "Relevant description"
meta_image: "cover.png" # should exist in `app/assets/images/`
twitter_account: "@product_twitter_account"   # required for Twitter Cards

Example 2: og meta tags not working rails

heroku config:set DOMAIN=www.my_product.com