How is the «Check out with PayPal» button implemented on the dropdown mini-cart?

Development Checkout

dmitrii_fediuk (Dmitrii Fediuk) April 21, 2017, 4:15am 2

See also:

How is the «Check out with PayPal» button implemented on the standalone cart page?
How is the «Proceed to Checkout» / «Go to Checkout» button implemented on the dropdown mini-cart?