Case‑Sensitive or Case‑Insensitive Markdown Link References: Choosing Spec Compliance vs. Legacy Compliance
Determine whether Markdown parsers should enforce the CommonMark‑specified case‑insensitive matching for link reference definitions or provide a configurable case‑sensitive mode to accommodate legacy content that depends on exact case. The goal is to balance spec compliance, which improves cross‑engine consistency and authoring ergonomics, against the risk o
