https://github.com/shshaw/Splitting/blob/d5a8fd0137e90770ae10d2e0e874a4a101161544/src/utils/dom.js#L1 <img width="567" alt="image" src="https://github.com/user-attachments/assets/3c178e37-4f29-4a2b-8ceb-ce71409e5129"> document is undefined in ssr env
