Is there a way to remove sourcemap line in built assets?

Similar question here: https://github.com/facebookincubator/create-react-app/issues/1004.

Is a nice way to remove the sourcemap line from the .js and .css files?

I’m tossing up between looking for the sourcemap pattern (//# sourcemap etc) and removing the match or ejecting to remove it from the webpack config, though that seems drastic for such a minor change.

[SanichKotikov]

GENERATE_SOURCEMAP=false react-scripts build doesn’t work?

[shrynx]

@tbillington @gaearon you can add a postbuild or (pre in case of gh-pages ,etc) script to your package.json and use rimraf to remove the files.

   // package.json
  ...

  "scripts": {
     ...
      
     "build": "react-scripts build",
     "postbuild": "rimraf build/**/*.map",

      ...
  }

The //# sourcemap line will give warning source map not found on dev console though. Removing this would be little troublesome but can be totally done using postbuild script. you can create a script using decomment and run it as part of postbuild or (prepublish, etc)