This repo has been successfully added a GitHub Page. On local or when no custom domain is added (i.e. be visited at https://username.github.io/repo-name/) it works fine, indicating that the code has no bug. However, when I add an internationalized domain name (kiếmtiền.quảcầu.cc – xn--kimtin-xi8bta.xn--qucu-hr5aza.cc), it redirects too many times. The content that Facebook Debugger can read is: