sourceMap is not working

[jaydson]

Setting sourceMap equals true generate a file .js.map, but its contents have just "[object Object]".
I'm not pretty sure if it is an error on 6to5 or in my configuration or in grunt-6to5.

My Gruntfile looks like this:

 grunt.initConfig({
        '6to5': {
            options: {
                sourceMap: true
            },
            dist: {
                files: {
                    'dist/app.js': 'src/classes.js'
                }
            }
        }
    });

[jaydson]

I think this is an issue on e6to5:
babel/babel#1

[es128]

@jaydson My PR fixes this against the latest 6to5. You can install it for now with npm install es128/grunt-6to5#patch-1

[sindresorhus]

Fixed by #4. Available in 1.0.1.