When accessing the SMT while logged in as a customer in the My Account Page of SuiteCommerce Standard website, the page stuck on an infinite loading, and also when already logged in to the SMT and tries to access the My Account Page a message appears saying “while logged into the SMT Admin, navigating to another domain is not allowed”.
Accessing the SMT on the website with the domain type of Web Store Only is not possible within the My Account Page. You must have a Single Secured Domain for Web Store and Checkout for it to work.