I'm using Magento 2.1.8, and I disable Magento guest checkout like this:
after saving the configuration, I cleared Magento cache. The problem occur when I tried to click the checkout button at minicart, it didn't redirect me to any page or show pop-up authentication. The button just does nothing when clicked


localStorage.getItem('mage-cache-storage')? Read more here: https://magento.stackexchange.com/a/123903/33057 – Khoa TruongDinh Sep 05 '17 at 03:31isGuestCheckoutAllowed":false– Hunter Sep 06 '17 at 08:52