Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Sourcemaps for Typescript files not displaying correctly in Chrome using Brunch 2.10.9

See original GitHub issue

Description

Building my Typescript project using brunch does not include correct sourcemapping in the browser anymore. I noticed this starts breaking in 2.10.0 (so I’m using 2.9.1 for now).

Expected behavior

I expect to see Typescript code when I open the mapped files in the browser for debugging.

Actual behavior

Chrome still shows .ts source files, but when I open them the content appears to be the transpiled .js files.

Environment

Brunch: 2.10.9
Node.js: 6.9.1
NPM: 3.10.9
Operating system: Windows 7
Code editor: VSCode

`package.json` contents

{
  "name": "myapp",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "dependencies": {
    "my-other-app": "1.0.0-alpha005"
  },
  "devDependencies": {
    "brunch": "^2.10.8",
    "jasmine-core": "^2.5.2",
    "javascript-brunch": "^2.10.0",
    "less-brunch": "^2.10.0",
    "tslint": "^4.5.1",
    "typescript": "^2.2.1",
    "typescript-brunch": "^2.3.0",
    "uglify-js": "^2.8.12"
  }
}

brunch config contents

module.exports = {
    files: {
        javascripts: {
            joinTo: {
                'js/vendor.js': /^Website.UI\/libs\/vendor\//,
                'js/app.js': /^Website.UI\/app\//
            },
            order: {
                before: ['Website.UI/libs/vendor/angular.min.js']
            }
        },
        stylesheets: {
            joinTo: 'css/main.css'
        },
    },
    plugins: {
        brunchTypescript: {
          ignoreErrors: true
        }
    },
    paths: {
        watched: ['Website.UI\/app\/', 'Website.UI\/libs\/vendor\/', 'Website.UI\/less\/'],
        public: 'Website.UI\/public'
    },
    modules: {
        nameCleaner: (path) => path.replace(/^Website\.UI\/app\//, ''),
        autoRequire: {
            'js/app.js': ['app']
        }
    }
}