Cookies not sent with livereload

When I run the app on my device with livereload turned on, it appears that the cookies don’t get sent to my server. I’m running PHP, and when I log $_COOKIE, it’s an empty array. However, using the chrome devices inspector, I can see that a cookie does in fact exist for my domain. Obviously, the livereload server is running on a different port, but as I understand it, browsers send cookies to domains regardless of port. I could be doing something wrong, but I’m stumped.

Never mind, apparently cookies are never posted with pre-flight requests.