Chunk Manifest Webpack Plugin

A Webpack plugin (v1.1.2, final release, no updates since 2017) that exports chunk id to asset file mappings as an external JSON manifest, enabling long-term caching by removing asset hashes from the bootstrap chunk. Key differentiators: earlier alternative to Webpack's built-in runtime chunk extraction; requires manual client-side loading of the manifest JSON; only supports Webpack 2 or 3 and is incompatible with modern Webpack versions (4+).