Shopify.StorefrontExpressButtons deprecated?

[DannyM]

Does anyone know if Shopify.StorefrontExpressButtons was deprecated? I think you used to be able to run Shopify.StorefrontExpressButtons.initialize(); to show dynamic checkout buttons on ajax carts, but seems to just return undefined for me now.

If it has, is there a new way to manually trigger loading of dynamic checkout buttons? 

[tim]

Old post, but wanted to share solution I found. Looks like 

document.body.dispatchEvent( new CustomEvent( 'shopify:section:select' ) );

may help here.

Shopify code actually listens to  this event to re-initialize dynamic checkout buttons.

Just need to check that your theme sections JS would not do anything unwanted.