Manifest hash never change

[allenwq]

Followed webpack guide and defined a manifest.js for holding the webpack runtime. but the hash of the manifest never changes after I used this plugin. By right it should change every time when vendor or app changes.

Any ideas ?

our config:

entry: {
    app: ['babel-polyfill', './app/index'],
    vendor: ['dep1', 'dep2'],
  },
  plugins: [
    new webpack.IgnorePlugin(/__test__/),
    new WebpackChunkHash(),
    new webpack.optimize.CommonsChunkPlugin({
      names: ['vendor', 'manifest'],
    }),
  ],

REF: https://webpack.js.org/guides/caching/#deterministic-hashes

[edorivai]

Seeing a similar problem. The screenshot shows the diff between two webpack build outputs. I ensured I added an async chunk between the builds, which shows up as chunk 55. We see the main chunk correctly updating (that's where I added the async import), and we see that he manifest clearly changed as well; the filesize grew. This all makes sense, though as @allenwq points out, the manifest hash does not update.

[edorivai]

I've setup a simple test for this:

https://github.com/edorivai/webpack-chunk-test

Comment/uncomment the async import in main.js and you'll see that the chunkhash of the manifest does not update.

[DCtheTall]

Bumping this issue.

Our production app at work used this module for adding hashes and uploading new scripts to S3, it was not updating hashes after changes to our Babel code.

Once we commented this module out of our webpack plugins and used webpack-md5-hash module instead, the hashes changes.