How can I disable sourcemaps?

[speigg]

Trying to build with babel in jspm, with sourcemaps disabled. In my config.js:

System.config({
  "transpiler": "babel",
  "babelOptions": {
    "sourceMaps": false
  }
});

But, es6-module-loader seems to be overwriting my options.

[guybedford]

There was a previous discussion around this in systemjs/systemjs#295.

[speigg]

The issue is that the options I provide in "babelOptions" are being overwritten, which is unexpected (it looks like the options for the other transpilers do the same). I can understand having "default" options for certain things if an option is not specified, but I don't think it makes sense for options that are explicitly provided by the developer to be overwritten.

[speigg]

As discussed in the thread you mentioned, System.sourceMaps = false would be a nice way to set the default behavior, but the options that are passed into "babelOptions/traceurOptions" (if any) should take priority.

[guybedford]

Why would you want to disable source maps? For performance? Surely you need debugging though?

[guybedford]

Added in 0.17.4.