For reference, the site I'm working on is available here:
This site has simple and subscription products. When I add a simple product to the cart, such as a bag of coffee, the cart updates and the "added to cart" popup appears. The subscription products behaved this way too until today when I updated Wordpress & WooCommerce. Now, as you can see, adding subscription products to the cart doesn't do anything. I've pulled the site down and swapped theme, and de-activated every plugin, but have essentially the same problem on that version too! Except that on the local version, subscription products give me an error:
This site can’t provide a secure connection localhost sent an invalid response.
I've had a look in the 'network' section in dev tools, the subscription products are sending an XHR request called 'cart/', whereas the products that are working aren't. Any ideas as to why this might be happening?
Is this a known bug? At a bit of a loss as to how to move forward!