So I'm working on a clients site trying to integrate some rewards feature. The site is a a single shop (so no partner account) and I keep running into CORS issue when making any kind of AJAX calls. Is there a way to resolve these CORS issue on the frontend? Or is this something lightspeed will need to open up on their site? The docs pretty much say a partner account isn't needed for single shops but if this is true than why am I running into so many issue just trying to get the data I need?