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Enable sourcemaps in development #924

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merged 2 commits into from
Nov 20, 2016
Merged

Enable sourcemaps in development #924

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1fb9a9c
fix poor performance with firefox when using `eval` as `devtool`
Oct 18, 2016
f74e33f
Update webpack.config.dev.js
gaearon Nov 20, 2016
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8 changes: 3 additions & 5 deletions packages/react-scripts/config/webpack.config.dev.js
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Expand Up @@ -34,11 +34,9 @@ var env = getClientEnvironment(publicUrl);
// It is focused on developer experience and fast rebuilds.
// The production configuration is different and lives in a separate file.
module.exports = {
// This makes the bundle appear split into separate modules in the devtools.
// We don't use source maps here because they can be confusing:
// https://github.com/facebookincubator/create-react-app/issues/343#issuecomment-237241875
// You may want 'cheap-module-source-map' instead if you prefer source maps.
devtool: 'eval',
// You may want 'eval' instead if you prefer to see the compiled output in DevTools.
// See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
devtool: 'cheap-module-source-map',
// These are the "entry points" to our application.
// This means they will be the "root" imports that are included in JS bundle.
// The first two entry points enable "hot" CSS and auto-refreshes for JS.
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