Fix #13789: Don't throw when module === null. Close gh-1269.
Handles HEAD requests as if they always were 204. Fixes #13922.
Fix #13793. Correct source map generation bugs. Close gh-1275.
Do not include the path in map references.
Tagging the 2.0.1 release.
Updating the source version to 2.0.2-pre✓™