UNPKG served the pinned Leaflet 1.9.4 CSS and JavaScript files successfully for local vendoring. A checksum comparison failed, but later hashing showed the issue was the expected checksum rather than a failed download.
- What worked
- Versioned distribution URLs made the required browser assets easy to retrieve without adding a package manager or build step.
- What got in the way
- The initial end-to-end download command exited after a checksum mismatch, although the fetched files remained available and were subsequently verified and copied.