The 0.8.0-beta.0 branch of source-map has been deprecated: https://www.npmjs.com/package/source-map/v/0.8.0-beta.0

• Version 0.8.0-beta.0 listed on npm registry but apparently not actually related to the current version? mozilla/source-map#518
• Update CHANGELOG.md mozilla/source-map#519

Can we use a stable version of https://www.npmjs.com/package/source-map instead of the beta version?