UglifyJS clossure variables overlapping

.gitignore

node_modules/
dist/

README.md

This project demonstrates strange behavior of UglifyJS mangler.

Gist

The source of function replace from ./node_modules/remarkable/lib/common/html_re.js:

function replace(regex, options) {
  regex = regex.source;
  options = options || '';

  return function self(name, val) {
    if (!name) {
      return new RegExp(regex, options);
    }
    val = val.source || val;
    regex = regex.replace(name, val);
    return self;
  };
}

The result of uglification:

function e(e,t){e=e.source;t=t||"";return function n(r,n){if(!r){return new RegExp(e,t)}n=n.source||n;e=e.replace(r,n);return n}}

Readable version:

function e(e,t){
  e=e.source;
  t=t||"";
  return function n(r,n){
    if(!r){
      return new RegExp(e,t)
    }
    n=n.source||n;
    e=e.replace(r,n);
    return n
  }
}

Overlapping between function name self and variable name val (both named with n in result).

Reproducing using webpack

• Clone repo
• Exec export PATH=$PATH:./node_modules/.bin (optional)
• Exec cake build to produce uglified version of client
• Explore to the dist/client_0.0.1.min.js or open index.html in browser (it throws exception).
• Exec cake -d build to produce non-uglified version of client
• Explore the dist/client_0.0.1.min.js or open index.html in browser (it works perfect).

Reproducing using uglifyjs command line

• Exec cake -d build to produce non-uglified version of client
• Rename dist/client_0.0.1.min.js to dist/client_0.0.1.src.js
• Exec ./node_modules/webpack/node_modules/uglify-js/bin/uglifyjs -m top_level=true,sort=true -o dist/client_0.0.1.min.js dist/client_0.0.1.src.js
• Explore the dist/client_0.0.1.min.js or open index.html in browser (it throws exception).

bootstrap.coffee

{createFactory, createClass, PropTypes: {bool}, DOM: {div, span}} = require "react"
{Modal} = bootstrap = require "react-bootstrap"

@[field] = createFactory value for field, value of module for module in [
  bootstrap
]

@["Modal#{field}"] = createFactory Modal[field] for field in ["Dialog", "Header", "Title", "Body", "Footer"]

@Container = createFactory createClass
  propTypes:
    content: bool
    container: bool
    fluid: bool

  render: ->
    div
      className: "#{if @props.container then " container" else ""}#{if @props.fluid then " container-fluid" else ""}"
      style:
        paddingTop: 80 if @props.content
      @props.children

@Wrapper = span

@ModalMixin = (name)->
  getInitialState: ->
    "show#{name}": no
    "hide#{name}": no
  
  "show#{name}": (done)->
    done = null if "function" isnt typeof done
    @setState "show#{name}": yes, done
  
  "hide#{name}": (done)->
    done = null if "function" isnt typeof done
    @setState "hide#{name}": yes, done
  
  "drop#{name}": ->
    @setState
      "show#{name}": no
      "hide#{name}": no
  
  "modal#{name}": ->
    if @state["show#{name}"]
      @["render#{name}"]
        show: not @state["hide#{name}"]
        onHide: @["hide#{name}"]
        onExited: @["drop#{name}"]

Cakefile

{
  name: packageName
  version: packageVersion
} = require "./package.json"

{join, resolve} = require "path"
webpack = {DefinePlugin, optimize:{UglifyJsPlugin, DedupePlugin}} = require "webpack"
ExtractTextPlugin = require "extract-text-webpack-plugin"
CompressionPlugin = require "compression-webpack-plugin"
{chdir, cwd, env} = process

webpack_config = ({debug, cordova, crosswalk})->
  context: __dirname
  entry:
    client: "./client.coffee"
  output:
    path: join __dirname, "dist"
    filename: "[name]_#{packageVersion}.min.js"
    chunkFilename: "[id].js"
  externals: [
    (context, request, callback)->
      if request is "fs" and /node_modules\/yamljs/.test context
        callback null, yes
        return
      do callback
  ]
  module:
    loaders: (loader for loader in [
      test: /\.coffee$/
      loader: "coffee"
    ,
      test: /\.less$/
      #loader: "style!css!less?strictMath"
      loader: ExtractTextPlugin.extract "style", "css!less?strictMath"
    ,
      test: /\.(?:png|svg|eot|ttf|otf|woff2?)$/
      loader: if debug then "file" else "url"
      query: limit: 32*1024
    ,
      test: /\.json$/,
      loader: "json"
    ,
      test: /\.js$/,
      loader: "transform?brfs!transform?envify"
    ] when loader?)
  resolve:
    extensions: [
      ""
      ".js"
      ".json"
      ".coffee"
      ".css"
    ]
  devtool: switch
    when debug then no #"cheap-module-eval-source-map"
    else "source-map"
  plugins: (plugin for plugin in [
    new DefinePlugin
      NODE_ENV: switch
        when debug then '"development"'
        else '"production"'
      TARGET: '"browser"'
  ,
    new DedupePlugin
  ,
    unless debug
      new UglifyJsPlugin
        screw_ie8: no
        comments: no
        preamble: no
        bare_returns: yes
        mangle:
          sort: yes
          toplevel: yes
          eval: no
        compress:
          sequences: yes
          properties: yes
          dead_code: yes
          drop_debugger: yes
          unsafe: yes
          conditionals: yes
          comparisons: yes
          evaluate: yes
          booleans: yes
          loops: yes
          unused: yes
          hoist_funs: yes
          hoist_vars: no
          if_return: yes
          join_vars: yes
          cascade: yes
          negate_iife: yes
          pure_getters: yes
          pure_funcs: null
          drop_console: yes
          keep_fargs: no
          keep_fnames: no
  ,
    new ExtractTextPlugin "[name]_#{packageVersion}.min.css"
  ,
    unless debug
      new CompressionPlugin
        asset: "{file}.gz",
        algorithm: "gzip",
        regExp: /\.(?:js|svg|eot|ttf|otf|woff2?)$/,
        threshold: 5*1024,
        minRatio: 0.8
  ] when plugin?)

webpack_build = (opts, cb)->
  webpack (webpack_config opts)
  .run (error, stats)->
    if error
      throw error
    else
      {errors, warnings} = do stats.toJson
      if errors.length > 0
        console.error "Errors:"
        for error in errors
          console.error error
      if warnings.length > 0
        for warning in warnings
          console.warn warning
      #console.log stats
      cb? null

env.PATH += ":#{__dirname}/node_modules/.bin"

option "-d", "--debug", "Debug mode"

task "build", "Build project", ({debug})->
  env.BUILD_TYPE = switch
    when debug then "debug"
    else "release"
  webpack_build {debug}

client.coffee

require "es5-shim"
require "es5-shim/es5-sham"
require "animation-frame"
.shim frameRate: 60

require "./client.less"
{render} = require "react-dom"
{Main: Base} = require "./main"
{Root} = require "./root"

{
  document
  navigator
  localStorage
  JSON: {
    parse: fromJson
    stringify: toJson
  }
  requestAnimationFrame
  cancelAnimationFrame
} = window

###
{onerror} = window
window.onerror = (args...)->
  {msg, file, line, col, error} = args
  console.error "#{msg} #{file}:#{line}:#{col}\n${error?.stack}"
  onerror.apply @, args... if onerror?
###

class Main extends Base
  constructor: (@_rootNode)->
    @_pendFrame = null
    super
    do @$render
  
  $load: (props)->
    for key of props when (raw = localStorage.getItem key)?
      try val = fromJson raw
      props[key] = val if val?
    props
  
  $save: (props)->
    for key, val of props
      if val?
        try raw = toJson val
        localStorage.setItem key, raw
      else
        localStorage.removeItem key
  
  $redraw: =>
    @_pendFrame = null
    render (Root @), @_rootNode
  
  $render: ->
    unless @_pendFrame?
      @_pendFrame = requestAnimationFrame @$redraw

initialize = ->
  new Main document.getElementById "app-root"

document.addEventListener (switch TARGET
  when "cordova" then "deviceready"
  else "DOMContentLoaded"), initialize, no

client.less

@import "~bootstrap/less/bootstrap";
@import "variables";
@import "theme";

index.html

<!DOCTYPE html><html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"><meta name="format-detection" content="telephone=no"><meta name="msapplication-tap-highlight" content="no"><meta name="viewport" content="user-scalable=no,initial-scale=1,maximum-scale=1,minimum-scale=1,width=device-width"><title>UglifyJS</title></head><body><div id="app-root"></div><script src="dist/client_0.0.1.min.js"></script></body></html>

main.coffee

class @Main
  constructor: ->
    {
      @language
    } = @$load
      language: (navigator?.userLanguage or navigator?.language or "en").replace /[\-\_].+$/, ""
    
    @languages =
      en:
        title: "English"
        plural: (n)->
          n |= 0
          # nplurals=2; plural=(n != 1);
          if n isnt 1 then 1 else 0
      ru:
        title: "Русский"
        plural: (n)->
          n |= 0
          # nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);
          switch
            when n % 10 is 1 and n % 100 isnt 11 then 0
            when n % 10 >= 2 and n % 10 <= 4 and (n % 100 < 10 or n % 100 >= 20) then 1
            else 2
    
    @language = "en" if @language not of @languages
    @plural = @languages[@language].plural

  destructor: ->

  setLanguage: (@language)=>
    @$save {@language}
    @plural = @languages[@language].plural
    do @$render

markup.coffee

{createClass, DOM:{div}} = require "./react"
Remarkable = require "remarkable"

@Markup = createClass
  getDefaultProps: ->
    preset: "full"
    options:
      html: no
      linkify: no
      breaks: on
      typographer: on
    src: ""
    plugins: []
    walkers: []
  
  shouldComponentUpdate: (props)->
    # force rendering only if source text changed
    @props.src isnt props.src
  
  componentWillMount: ->
    # create renderer instance once when mounting
    @md = new Remarkable @props.preset, @props.markdown
    @md.use plugin for plugin in @props.plugins
  
  render: ->
    tree = @md.parse @props.src, env = {}
    walker.walk tree for walker in @props.walkers
    div
      className: @props.className
      dangerouslySetInnerHTML:
        __html: @md.renderer.render tree, @md.options, env

getTeaser = (content)->
  if (pos = content.search /[\n]{2,}/)?
    content[0..pos]
  else
    content

@getContent = (content, teaser = no)->
  [teaser_, content_includes_teaser, content_] = content.split /(?:^[\n]*|[\n]{2,})([<])?[\/]{3,}[\n]{2,}/, 3
  if teaser # need teaser
    if content_? # have splitter
      teaser_
    else # haven't splitter
      getTeaser content
  else # need content
    if content_? # have splitter
      if content_includes_teaser
        """
        #{teaser_}

        #{content_}
        """
      else
        content_
    else
      content

package.json

{
  "name": "uglify-clossure-vars-overlapping",
  "version": "0.0.1",
  "description": "UglifyJS closure vars overlapping.",
  "main": "client.js",
  "dependencies": {
    "animation-frame": "^0.2.5",
    "async": "^0.9.2",
    "bootstrap": "^3.3.6",
    "brfs": "^1.0.2",
    "clarinet": "^0.9.1",
    "clean-css": "^2.2.23",
    "codemirror": "^5.7.0",
    "coffee-script": "^1.9.2",
    "es5-shim": "^4.3.1",
    "gerber-parser": "^0.1.3",
    "httpinvoke": "^1.3.2",
    "json3": "^3.3.2",
    "jszip": "^2.5.0",
    "katex": "^0.5.1",
    "moment": "^2.10.6",
    "pdfkit": "^0.7.1",
    "react": "^0.14.3",
    "react-addons-update": "^0.14.3",
    "react-bootstrap": "^0.28.1",
    "react-codemirror": "^0.2.1",
    "react-dom": "^0.14.3",
    "readable-stream": "^2.0.4",
    "remarkable": "^1.6.1",
    "route-parser": "0.0.4",
    "store": "^1.3.17",
    "yamljs": "^0.2.4"
  },
  "devDependencies": {
    "codo": "^2.0.9",
    "coffee-loader": "^0.7.2",
    "coffee-script": "^1.10.0",
    "compression-webpack-plugin": "^0.2.0",
    "css-loader": "^0.18.0",
    "envify": "^3.4.0",
    "extract-text-webpack-plugin": "^0.9.1",
    "file-loader": "^0.8.5",
    "json-loader": "^0.5.4",
    "less": "^2.5.3",
    "less-loader": "^2.2.1",
    "style-loader": "^0.13.0",
    "transform-loader": "^0.2.3",
    "url-loader": "^0.5.7",
    "webpack": "^1.12.9"
  },
  "scripts": {
    "preuninstall": "rm -f client*.min.js client*.min.js.map",
    "postinstall": "[ x$NODE_ENV = xproduction ] && { npm run-script release; true; } || npm run-script debug",
    "release": "cake build",
    "debug": "cake -d build",
    "documentation": "codo -u common/*.coffee api/*.coffee",
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "coffee server.coffee &",
    "stop": "pkill --signal SIGINT $npm_package_name || true"
  },
  "repository": {
    "type": "git",
    "url": ""
  },
  "keywords": [
    "ReactJS",
    "NodeJS",
    "Web",
    "UglifyJS"
  ],
  "author": "K. <[email protected]>",
  "license": "MIT"
}

react.coffee

React = require "react"

{createClass, createFactory, createElement} = React

@[field] = value for field, value of React

@createClass = (args...)->
  createFactory createClass args...

root.coffee

{createClass} = require "./react"
{Markup} = require "./markup"

@Root = createClass
  getInitialState: ->
    src: @props.content or """
    # Example title
    
    Example content
    """
  
  render: ->
    Markup
      src: @state.src

theme.less

// Paper 3.3.5
// Bootswatch
// -----------------------------------------------------

//@web-font-path: "https://fonts.googleapis.com/css?family=Roboto:300,400,500,700";

/*
.web-font(@path) {
  @import url("@{path}");
}
.web-font(@web-font-path);
*/

// Navbar =====================================================================

.navbar {
  border: none;
  .box-shadow(0 1px 2px rgba(0,0,0,.3));

  &-brand {
    font-size: 24px;
  }

  &-inverse {
    .navbar-form {

      input[type=text],
      input[type=password] {
        color: #fff;
        .box-shadow(inset 0 -1px 0 @navbar-inverse-link-color);
        .placeholder(@navbar-inverse-link-color);

        &:focus {
          .box-shadow(inset 0 -2px 0 #fff);
        }
      }
    }
  }
}

// Buttons ====================================================================

#btn(@class,@bg) {
  .btn-@{class} {
    background-size: 200%;
    background-position: 50%;

    &:focus {
      background-color: @bg;
    }

    &:hover,
    &:active:hover {
      background-color: darken(@bg, 6%);
    }

    &:active {
      background-color: darken(@bg, 12%);
      #gradient > .radial(darken(@bg, 12%) 10%, @bg 11%);
      background-size: 1000%;
      .box-shadow(2px 2px 4px rgba(0,0,0,.4));
    }
  }
}

#btn(default,@btn-default-bg);
#btn(primary,@btn-primary-bg);
#btn(success,@btn-success-bg);
#btn(info,@btn-info-bg);
#btn(warning,@btn-warning-bg);
#btn(danger,@btn-danger-bg);
#btn(link,#fff);

.btn {
  text-transform: uppercase;
  border: none;
  .box-shadow(1px 1px 4px rgba(0,0,0,.4));
  .transition(all 0.4s);

  &-link {
    border-radius: @btn-border-radius-base;
    .box-shadow(none);
    color: @btn-default-color;

    &:hover,
    &:focus {
      .box-shadow(none);
      color: @btn-default-color;
      text-decoration: none;
    }
  }

  &-default {

    &.disabled {
      background-color: rgba(0, 0, 0, 0.1);
      color: rgba(0, 0, 0, 0.4);
      opacity: 1;
    }
  }
}

.btn-group {
  .btn + .btn,
  .btn + .btn-group,
  .btn-group + .btn,
  .btn-group + .btn-group {
    margin-left: 0;
  }

  &-vertical {
    > .btn + .btn,
    > .btn + .btn-group,
    > .btn-group + .btn,
    > .btn-group + .btn-group {
      margin-top: 0;
    }
  }
}

// Typography =================================================================

body {
  -webkit-font-smoothing: antialiased;
  letter-spacing: .1px;
}

p {
  margin: 0 0 1em;
}

input,
button {
  -webkit-font-smoothing: antialiased;
  letter-spacing: .1px;
}

a {
  .transition(all 0.2s);
}

// Tables =====================================================================

.table-hover {
  > tbody > tr,
  > tbody > tr > th,
  > tbody > tr > td {
    .transition(all 0.2s);
  }
}

// Forms ======================================================================

label {
  font-weight: normal;
}

textarea,
textarea.form-control,
input.form-control,
input[type=text],
input[type=password],
input[type=email],
input[type=number],
[type=text].form-control,
[type=password].form-control,
[type=email].form-control,
[type=tel].form-control,
[contenteditable].form-control {
  padding: 0;
  border: none;
  border-radius: 0;
  -webkit-appearance: none;
  .box-shadow(inset 0 -1px 0 #ddd);
  font-size: 16px;

  &:focus {
    .box-shadow(inset 0 -2px 0 @brand-primary);
  }

  &[disabled],
  &[readonly] {
    .box-shadow(none);
    border-bottom: 1px dotted #ddd;
  }

  &.input {
    &-sm {
      font-size: @font-size-small;
    }

    &-lg {
      font-size: @font-size-large;
    }
  }
}

select,
select.form-control {
  border: 0;
  border-radius: 0;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  padding-left: 0;
  padding-right: 0\9; // remove padding for < ie9 since default arrow can't be removed
  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAaCAMAAACelLz8AAAAJ1BMVEVmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmaP/QSjAAAADHRSTlMAAgMJC0uWpKa6wMxMdjkoAAAANUlEQVR4AeXJyQEAERAAsNl7Hf3X6xt0QL6JpZWq30pdvdadme+0PMdzvHm8YThHcT1H7K0BtOMDniZhWOgAAAAASUVORK5CYII=);
  background-size: 13px;
  background-repeat: no-repeat;
  background-position: right center;
  .box-shadow(inset 0 -1px 0 #ddd);
  font-size: 16px;
  line-height: 1.5;

  &::-ms-expand {
    display: none;
  }

  &.input {
    &-sm {
      font-size: @font-size-small;
    }

    &-lg {
      font-size: @font-size-large;
    }
  }

  &:focus {
    .box-shadow(inset 0 -2px 0 @brand-primary);
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABoAAAAaCAMAAACelLz8AAAAJ1BMVEUhISEhISEhISEhISEhISEhISEhISEhISEhISEhISEhISEhISEhISF8S9ewAAAADHRSTlMAAgMJC0uWpKa6wMxMdjkoAAAANUlEQVR4AeXJyQEAERAAsNl7Hf3X6xt0QL6JpZWq30pdvdadme+0PMdzvHm8YThHcT1H7K0BtOMDniZhWOgAAAAASUVORK5CYII=);
  }

  &[multiple] {
    background: none;
  }
}

.radio,
.radio-inline,
.checkbox,
.checkbox-inline {
  label {
    padding-left: 25px;
  }

  input[type="radio"],
  input[type="checkbox"] {
    margin-left: -25px;
  }
}

input[type="radio"],
.radio input[type="radio"],
.radio-inline input[type="radio"] {
  position: relative;
  margin-top: 6px;
  margin-right: 4px;
  vertical-align: top;
  border: none;
  background-color: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;

  &:focus {
    outline: none;
  }

  &:before,
  &:after {
    content: "";
    display: block;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    .transition(240ms);
  }

  &:before {
    position: absolute;
    left: 0;
    top: -3px;
    background-color: @brand-primary;
    .scale(0);
  }

  &:after {
    position: relative;
    top: -3px;
    border: 2px solid @gray;
  }

  &:checked:before {
    .scale(0.5);
  }

  &:disabled:checked:before {
    background-color: @gray-light;
  }

  &:checked:after {
    border-color: @brand-primary;
  }

  &:disabled:after,
  &:disabled:checked:after {
    border-color: @gray-light;
  }
}

input[type="checkbox"],
.checkbox input[type="checkbox"],
.checkbox-inline input[type="checkbox"] {
  position: relative;
  border: none;
  margin-bottom: -4px;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;

  &:focus {
    outline: none;
  }

  &:focus:after {
    border-color: @brand-primary;
  }

  &:after {
    content: "";
    display: block;
    width: 18px;
    height: 18px;
    margin-top: -2px;
    margin-right: 5px;
    border: 2px solid @gray;
    border-radius: 2px;
    .transition(240ms);
  }

  &:checked:before {
    content: "";
    position: absolute;
    top: 0;
    left: 6px;
    display: table;
    width: 6px;
    height: 12px;
    border: 2px solid #fff;
    border-top-width: 0;
    border-left-width: 0;
    .rotate(45deg);
  }

  &:checked:after {
    background-color: @brand-primary;
    border-color: @brand-primary;
  }

  &:disabled:after {
    border-color: @gray-light;
  }

  &:disabled:checked:after {
    background-color: @gray-light;
    border-color: transparent;
  }
}

.has-warning {
  input:not([type=checkbox]),
  .form-control,
  input.form-control[readonly],
  input[type=text][readonly],
  [type=text].form-control[readonly],
  input:not([type=checkbox]):focus,
  .form-control:focus {
    border-bottom: none;
    .box-shadow(inset 0 -2px 0 @brand-warning);
  }
}

.has-error {
  input:not([type=checkbox]),
  .form-control,
  input.form-control[readonly],
  input[type=text][readonly],
  [type=text].form-control[readonly],
  input:not([type=checkbox]):focus,
  .form-control:focus {
    border-bottom: none;
    .box-shadow(inset 0 -2px 0 @brand-danger);
  }
}

.has-success {
  input:not([type=checkbox]),
  .form-control,
  input.form-control[readonly],
  input[type=text][readonly],
  [type=text].form-control[readonly],
  input:not([type=checkbox]):focus,
  .form-control:focus {
    border-bottom: none;
    .box-shadow(inset 0 -2px 0 @brand-success);
  }
}

// Remove the Bootstrap feedback styles for input addons
.input-group-addon {
  .has-warning &, .has-error &, .has-success & {
    color: @input-color;
    border-color: @input-group-addon-border-color;
    background-color: @input-group-addon-bg;
  }
}

// Navs =======================================================================

.nav-tabs {
  > li > a,
  > li > a:focus {
    margin-right: 0;
    background-color: transparent;
    border: none;
    color: @navbar-default-link-color;
    .box-shadow(inset 0 -1px 0 #ddd);
    .transition(all 0.2s);

    &:hover {
      background-color: transparent;
      .box-shadow(inset 0 -2px 0 @brand-primary);
      color: @brand-primary;
    }
  }

  & > li.active > a,
  & > li.active > a:focus {
    border: none;
    .box-shadow(inset 0 -2px 0 @brand-primary);
    color: @brand-primary;

    &:hover {
      border: none;
      color: @brand-primary;
    }
  }

  & > li.disabled > a {
    .box-shadow(inset 0 -1px 0 #ddd);
  }

  &.nav-justified {

    & > li > a,
    & > li > a:hover,
    & > li > a:focus,
    & > .active > a,
    & > .active > a:hover,
    & > .active > a:focus {
      border: none;
    }
  }

  .dropdown-menu {
    margin-top: 0;
  }
}

.dropdown-menu {
  margin-top: 0;
  border: none;
  .box-shadow(0 1px 4px rgba(0,0,0,.3));
}

// Indicators =================================================================

.alert {
  border: none;
  color: #fff;

  &-success {
    background-color: @brand-success;
  }

  &-info {
    background-color: @brand-info;
  }

  &-warning {
    background-color: @brand-warning;
  }

  &-danger {
    background-color: @brand-danger;
  }

  a:not(.close),
  .alert-link {
    color: #fff;
    font-weight: bold;
  }

  .close {
    color: #fff;
  }
}

.badge {
  padding: 3px 6px 5px;
}

.progress {
  position: relative;
  z-index: 1;
  height: 6px;
  border-radius: 0;

  .box-shadow(none);

  &-bar {
    .box-shadow(none);

    &:last-child {
      border-radius: 0 3px 3px 0;
    }

    &:last-child {
      &:before {
        display: block;
        content: "";
        position: absolute;
        width: 100%;
        height: 100%;
        left: 0;
        right: 0;
        z-index: -1;
        background-color: lighten(@progress-bar-bg, 35%);
      }
    }

    &-success:last-child.progress-bar:before {
      background-color: lighten(@brand-success, 35%);
    }

    &-info:last-child.progress-bar:before {
      background-color: lighten(@brand-info, 45%);
    }
    &-warning:last-child.progress-bar:before {
      background-color: lighten(@brand-warning, 35%);
    }

    &-danger:last-child.progress-bar:before {
      background-color: lighten(@brand-danger, 25%);
    }
  }
}

// Progress bars ==============================================================

// Containers =================================================================

.close {
  font-size: 34px;
  font-weight: 300;
  line-height: 24px;
  opacity: 0.6;
  .transition(all 0.2s);

  &:hover {
    opacity: 1;
  }
}

.list-group {

  &-item {
    padding: 15px;
  }

  &-item-text {
    color: @gray-light;
  }
}

.well {
  border-radius: 0;
  .box-shadow(none);
}

.panel {
  border: none;
  border-radius: 2px;
  .box-shadow(0 1px 4px rgba(0,0,0,.3));

  &-heading {
    border-bottom: none;
  }

  &-footer {
    border-top: none;
  }
}

.popover {
  border: none;
  .box-shadow(0 1px 4px rgba(0,0,0,.3));
}

.carousel {
  &-caption {
    h1, h2, h3, h4, h5, h6 {
      color: inherit;
    }
  }
}

variables.less

/*! Generated by Live LESS Theme Customizer */

@gray-dark: rgb(33, 33, 33);
@gray: rgb(102, 102, 102);
@gray-light: rgb(187, 187, 187);
@brand-primary: rgb(21, 140, 186);
@brand-success: rgb(76, 175, 80);
@brand-info: rgb(156, 39, 176);
@brand-warning: rgb(255, 152, 0);
@brand-danger: rgb(229, 28, 35);
@font-family-sans-serif: "Roboto", "Helvetica Neue", Helvetica, Arial, sans-serif;
@font-size-base: 13px;
@font-size-h1: 56px;
@font-size-h2: 45px;
@font-size-h3: 34px;
@font-size-h4: 24px;
@font-size-h5: 20px;
@font-size-h6: 14px;
@line-height-base: 1.846;
@headings-font-weight: 400;
@headings-color: rgb(68, 68, 68);
@padding-base-horizontal: 16px;
@border-radius-base: 2px;
@border-radius-large: 3px;
@border-radius-small: 1px;
@btn-default-color: rgb(68, 68, 68);
@btn-default-bg: rgb(217, 216, 216);
@btn-default-border: transparent;
@btn-primary-bg: rgb(21, 140, 186);
@btn-primary-border: transparent;
@btn-success-border: transparent;
@btn-info-border: transparent;
@btn-warning-border: transparent;
@btn-danger-border: transparent;
@input-bg: transparent;
@input-bg-disabled: transparent;
@input-border: transparent;
@input-color-placeholder: @gray-light;
@input-group-addon-bg: transparent;
@dropdown-link-hover-bg: @gray-lighter;
@navbar-height: 64px;
@navbar-default-color: @gray-light;
@navbar-default-bg: rgb(255, 255, 255);
@navbar-default-border: transparent;
@navbar-default-link-color: @gray;
@navbar-default-link-hover-color: @gray-dark;
@navbar-default-link-active-color: @gray-dark;
@navbar-default-toggle-hover-bg: transparent;
@navbar-default-toggle-icon-bar-bg: rgba(0, 0, 0, 0.5);
@navbar-default-toggle-border-color: transparent;
@navbar-inverse-bg: @brand-primary;
@navbar-inverse-border: transparent;
@navbar-inverse-toggle-hover-bg: transparent;
@navbar-inverse-toggle-icon-bar-bg: rgba(0, 0, 0, 0.5);
@navbar-inverse-toggle-border-color: transparent;
@nav-tabs-border-color: transparent;
@nav-tabs-active-link-hover-bg: transparent;
@nav-tabs-active-link-hover-border-color: transparent;
@nav-tabs-justified-link-border-color: @nav-tabs-border-color;
@jumbotron-bg: rgb(249, 249, 249);
@state-success-text: @brand-success;
@state-info-text: @brand-info;
@state-info-bg: rgb(225, 190, 231);
@state-warning-text: @brand-warning;
@state-warning-bg: rgb(255, 224, 178);
@state-danger-text: @brand-danger;
@state-danger-bg: rgb(249, 189, 187);
@tooltip-bg: rgb(114, 114, 114);
@popover-border-color: transparent;
@popover-fallback-border-color: transparent;
@modal-content-border-color: transparent;
@modal-header-border-color: transparent;
@panel-success-text: rgb(255, 255, 255);
@panel-info-text: rgb(255, 255, 255);
@panel-warning-text: rgb(255, 255, 255);
@panel-danger-text: rgb(255, 255, 255);
@well-bg: rgb(249, 249, 249);
@well-border: transparent;
@badge-font-weight: normal;
@close-font-weight: normal;
@close-text-shadow: none;