On the front-end we use Shopify Buy Button to create easy to use cart experience without the use of any iFrames..
WP Shopify is also in Pro version which includes 80+ Templates, Automatic Syncing, Order and Customer Data, Cross-domain Tracking, Live Support, and much more functionality.
Back WordPress, click on the menu item WP Shopify and begin syncing your Shopify store to WordPress..
WP Shopify also allows you to sell your products and is bundled with cart experience using Shopify Buy Button SDK..
After installing the plugin you connect your Shopify store to WordPress by filling in your Shopify API keys.
Shopify has instead moved attention to their Buy Button which is library that allows you to embed products with snippets of HTML and JavaScript.
The main drawback to this is that Shopify uses iFrames for the embeds.
WP Shopify instead uses combination of Buy Button and Shopify API to create iFrame-free experience.
When customer clicks the button within the cart, they're redirected to Shopify checkout page to finish the process.
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
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