Source Maps Not Generated

[victormoukhortov]

It seems as though source maps for my exposed file don't get generated properly:

loaders: [{
   test: require.resolve('./index.js'),
   loaders: ['expose?MyProject', 'babel-loader']
}]

The generated source map looks like this (using cheap-module-eval-source-map), which does not match the contents of index.js

module.exports = global["MyProject"] = require("-!/{...}/node_modules/babel-loader/index.js!/{...}/index.js");

/** WEBPACK FOOTER **
 ** index.js
 **/

[evisong]

Facing the same issue. Source map is not correct.

[evisong]

I've met another related issue: with the combination of cheap-module-eval-source-map and babel?presets[]=es2015&presets[]=react&presets[]=stage-0, the build failed due to soft errors:

... Cannot assign to read only property \'mappings\' of {"version":3,"sources":["... 

Which seems that expose-loader was trying to parse source maps but failed.

My workaround is to switch the order of expose-loader and babel-loader:

loaders: ['babel?presets[]=es2015&presets[]=react&presets[]=stage-0', 'expose?xxx']

The generated source map is still not right (just like the one @victormoukhortov pasted), but at least the compilation succeeds.

[evisong]

Hi, team,

Sorry for pushing but any progress on this ticket?

Thanks.

[SpaceK33z]

@evisong no. Please try to create a PR if you really want this.