diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..c24adb3
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,29 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: thegreenhouse/nodejs-dev
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+          - v1-dependencies-{{ checksum "package.json" }}
+          # fallback to using the latest cache if no exact match is found
+          - v1-dependencies-
+
+      - run:
+          name: Install Project Dependencies
+          command: npm install
+
+      - run:
+          name: Run Tests
+          command: npm test
+
+      - run:
+          name: Run CI Build
+          command: npm run ci
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 11bbb22..15c3a85 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@ dist/
 node_modules/
 .idea/
 npm-debug.log
-test/**/build/
\ No newline at end of file
+test/**/build/
+build/
\ No newline at end of file
diff --git a/README.md b/README.md
index 30653f2..c05f5c4 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ A fork of Critical Webpack Plugin.
 
 This is simplified and runs after all files have been emitted so you can use it after Extract Text and HTML Webpack Plugin.
 
+**Note**: [As **critical** itself has a dependency on puppeteer](https://github.com/addyosmani/critical/releases/tag/v1.0.0) in order to run Headless Chrome, consumers of this plugin will need to make sure that their build environment (local, CI, etc) where running webpack with this plugin has the necessary operating system packages installed.  See this page for more information on [troubleshooting](https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md) puppeteer.
+
 ### Install
 
 ```
@@ -40,3 +42,19 @@ module.export = {
 ### Detailed explanation
 
 Read [Critical CSS and Webpack: Automatically Minimize Render-Blocking CSS](https://vuejsdevelopers.com/2017/07/24/critical-css-webpack/) blogpost.
+
+### Development
+Since the main dependency of this project, critical, depends on an environment that supports Headless Chrome, [Docker](https://www.docker.com/) has been provided to support local development of this project.
+
+After you have [installed Docker](https://www.docker.com/community-edition), you can do the following to get setup:
+1. Start the container - `docker-compose up -d`
+1. SSH into the container - `docker exec -it html-critical-webpack-plugin_nodejs_1 /bin/bash`
+1. Install dependencies - `rm -rf node_modules && npm install` (this ensures Linux specific dependencies get installed)
+
+Now you can run the project's `npm` scripts like usuual:
+1. Run unit tests - `npm run test`
+1. Run the build - `npm run ci`
+
+**_Note_**: changes are bi-directional
+
+Learn more about Docker [here](https://docs.docker.com/get-started/) or [configuring Headless Chrome for your own machine](https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md).
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..ba84eb5
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,10 @@
+version: '3.2'
+
+services:
+
+  nodejs:
+    image: thegreenhouse/nodejs-dev
+    volumes:
+      - ./:/workspace
+    working_dir: /workspace
+    command: tail -f /dev/null
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 94374fb..16ab2bf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1714,7 +1714,6 @@
       "requires": {
         "anymatch": "1.3.2",
         "async-each": "1.0.1",
-        "fsevents": "1.1.3",
         "glob-parent": "2.0.0",
         "inherits": "2.0.3",
         "is-binary-path": "1.0.1",
@@ -3195,795 +3194,6 @@
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
-    "fsevents": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.1.3.tgz",
-      "integrity": "sha512-WIr7iDkdmdbxu/Gh6eKEZJL6KPE74/5MEsf2whTOFNxbIoIixogroLdKYqB6FDav4Wavh/lZdzzd3b2KxIXC5Q==",
-      "optional": true,
-      "requires": {
-        "nan": "2.9.2",
-        "node-pre-gyp": "0.6.39"
-      },
-      "dependencies": {
-        "abbrev": {
-          "version": "1.1.0",
-          "bundled": true,
-          "optional": true
-        },
-        "ajv": {
-          "version": "4.11.8",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "co": "4.6.0",
-            "json-stable-stringify": "1.0.1"
-          }
-        },
-        "ansi-regex": {
-          "version": "2.1.1",
-          "bundled": true
-        },
-        "aproba": {
-          "version": "1.1.1",
-          "bundled": true,
-          "optional": true
-        },
-        "are-we-there-yet": {
-          "version": "1.1.4",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "delegates": "1.0.0",
-            "readable-stream": "2.2.9"
-          }
-        },
-        "asn1": {
-          "version": "0.2.3",
-          "bundled": true,
-          "optional": true
-        },
-        "assert-plus": {
-          "version": "0.2.0",
-          "bundled": true,
-          "optional": true
-        },
-        "asynckit": {
-          "version": "0.4.0",
-          "bundled": true,
-          "optional": true
-        },
-        "aws-sign2": {
-          "version": "0.6.0",
-          "bundled": true,
-          "optional": true
-        },
-        "aws4": {
-          "version": "1.6.0",
-          "bundled": true,
-          "optional": true
-        },
-        "balanced-match": {
-          "version": "0.4.2",
-          "bundled": true
-        },
-        "bcrypt-pbkdf": {
-          "version": "1.0.1",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "tweetnacl": "0.14.5"
-          }
-        },
-        "block-stream": {
-          "version": "0.0.9",
-          "bundled": true,
-          "requires": {
-            "inherits": "2.0.3"
-          }
-        },
-        "boom": {
-          "version": "2.10.1",
-          "bundled": true,
-          "requires": {
-            "hoek": "2.16.3"
-          }
-        },
-        "brace-expansion": {
-          "version": "1.1.7",
-          "bundled": true,
-          "requires": {
-            "balanced-match": "0.4.2",
-            "concat-map": "0.0.1"
-          }
-        },
-        "buffer-shims": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "caseless": {
-          "version": "0.12.0",
-          "bundled": true,
-          "optional": true
-        },
-        "co": {
-          "version": "4.6.0",
-          "bundled": true,
-          "optional": true
-        },
-        "code-point-at": {
-          "version": "1.1.0",
-          "bundled": true
-        },
-        "combined-stream": {
-          "version": "1.0.5",
-          "bundled": true,
-          "requires": {
-            "delayed-stream": "1.0.0"
-          }
-        },
-        "concat-map": {
-          "version": "0.0.1",
-          "bundled": true
-        },
-        "console-control-strings": {
-          "version": "1.1.0",
-          "bundled": true
-        },
-        "core-util-is": {
-          "version": "1.0.2",
-          "bundled": true
-        },
-        "cryptiles": {
-          "version": "2.0.5",
-          "bundled": true,
-          "requires": {
-            "boom": "2.10.1"
-          }
-        },
-        "dashdash": {
-          "version": "1.14.1",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "assert-plus": "1.0.0"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "optional": true
-            }
-          }
-        },
-        "debug": {
-          "version": "2.6.8",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "ms": "2.0.0"
-          }
-        },
-        "deep-extend": {
-          "version": "0.4.2",
-          "bundled": true,
-          "optional": true
-        },
-        "delayed-stream": {
-          "version": "1.0.0",
-          "bundled": true
-        },
-        "delegates": {
-          "version": "1.0.0",
-          "bundled": true,
-          "optional": true
-        },
-        "detect-libc": {
-          "version": "1.0.2",
-          "bundled": true,
-          "optional": true
-        },
-        "ecc-jsbn": {
-          "version": "0.1.1",
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-          "optional": true,
-          "requires": {
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-          }
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-            "object-assign": "4.1.1",
-            "signal-exit": "3.0.2",
-            "string-width": "1.0.2",
-            "strip-ansi": "3.0.1",
-            "wide-align": "1.1.2"
-          }
-        },
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-          "version": "0.1.7",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "assert-plus": "1.0.0"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "optional": true
-            }
-          }
-        },
-        "glob": {
-          "version": "7.1.2",
-          "bundled": true,
-          "requires": {
-            "fs.realpath": "1.0.0",
-            "inflight": "1.0.6",
-            "inherits": "2.0.3",
-            "minimatch": "3.0.4",
-            "once": "1.4.0",
-            "path-is-absolute": "1.0.1"
-          }
-        },
-        "graceful-fs": {
-          "version": "4.1.11",
-          "bundled": true
-        },
-        "har-schema": {
-          "version": "1.0.5",
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-          "version": "2.16.3",
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-            "process-nextick-args": "1.0.7",
-            "string_decoder": "1.0.1",
-            "util-deprecate": "1.0.2"
-          }
-        },
-        "request": {
-          "version": "2.81.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "aws-sign2": "0.6.0",
-            "aws4": "1.6.0",
-            "caseless": "0.12.0",
-            "combined-stream": "1.0.5",
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-            "forever-agent": "0.6.1",
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-            "http-signature": "1.1.1",
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-            "qs": "6.4.0",
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-          "optional": true
-        },
-        "sntp": {
-          "version": "1.0.9",
-          "bundled": true,
-          "requires": {
-            "hoek": "2.16.3"
-          }
-        },
-        "sshpk": {
-          "version": "1.13.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "asn1": "0.2.3",
-            "assert-plus": "1.0.0",
-            "bcrypt-pbkdf": "1.0.1",
-            "dashdash": "1.14.1",
-            "ecc-jsbn": "0.1.1",
-            "getpass": "0.1.7",
-            "jodid25519": "1.0.2",
-            "jsbn": "0.1.1",
-            "tweetnacl": "0.14.5"
-          },
-          "dependencies": {
-            "assert-plus": {
-              "version": "1.0.0",
-              "bundled": true,
-              "optional": true
-            }
-          }
-        },
-        "string-width": {
-          "version": "1.0.2",
-          "bundled": true,
-          "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
-          }
-        },
-        "string_decoder": {
-          "version": "1.0.1",
-          "bundled": true,
-          "requires": {
-            "safe-buffer": "5.0.1"
-          }
-        },
-        "stringstream": {
-          "version": "0.0.5",
-          "bundled": true,
-          "optional": true
-        },
-        "strip-ansi": {
-          "version": "3.0.1",
-          "bundled": true,
-          "requires": {
-            "ansi-regex": "2.1.1"
-          }
-        },
-        "strip-json-comments": {
-          "version": "2.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "tar": {
-          "version": "2.2.1",
-          "bundled": true,
-          "requires": {
-            "block-stream": "0.0.9",
-            "fstream": "1.0.11",
-            "inherits": "2.0.3"
-          }
-        },
-        "tar-pack": {
-          "version": "3.4.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "debug": "2.6.8",
-            "fstream": "1.0.11",
-            "fstream-ignore": "1.0.5",
-            "once": "1.4.0",
-            "readable-stream": "2.2.9",
-            "rimraf": "2.6.1",
-            "tar": "2.2.1",
-            "uid-number": "0.0.6"
-          }
-        },
-        "tough-cookie": {
-          "version": "2.3.2",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "punycode": "1.4.1"
-          }
-        },
-        "tunnel-agent": {
-          "version": "0.6.0",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "safe-buffer": "5.0.1"
-          }
-        },
-        "tweetnacl": {
-          "version": "0.14.5",
-          "bundled": true,
-          "optional": true
-        },
-        "uid-number": {
-          "version": "0.0.6",
-          "bundled": true,
-          "optional": true
-        },
-        "util-deprecate": {
-          "version": "1.0.2",
-          "bundled": true
-        },
-        "uuid": {
-          "version": "3.0.1",
-          "bundled": true,
-          "optional": true
-        },
-        "verror": {
-          "version": "1.3.6",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "extsprintf": "1.0.2"
-          }
-        },
-        "wide-align": {
-          "version": "1.1.2",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "string-width": "1.0.2"
-          }
-        },
-        "wrappy": {
-          "version": "1.0.2",
-          "bundled": true
-        }
-      }
-    },
     "function-bind": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
@@ -6063,12 +5273,6 @@
         }
       }
     },
-    "nan": {
-      "version": "2.9.2",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.9.2.tgz",
-      "integrity": "sha512-ltW65co7f3PQWBDbqVvaU1WtFJUsNW7sWWm4HINhbMQIyVyzIeyZ8toX5TC5eeooE6piZoaEh4cZkueSKG3KYw==",
-      "optional": true
-    },
     "natural-compare": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",
@@ -9323,7 +8527,6 @@
         "anymatch": "1.3.2",
         "exec-sh": "0.2.1",
         "fb-watchman": "2.0.0",
-        "fsevents": "1.1.3",
         "minimatch": "3.0.4",
         "minimist": "1.2.0",
         "walker": "1.0.7",
diff --git a/package.json b/package.json
index cad4a1a..a9e24bf 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,8 @@
   "homepage": "https://github.com/anthonygore/html-critical-webpack-plugin#readme",
   "scripts": {
     "build": "rimraf ./dist && webpack --config ./webpack.config.js",
-    "test": "mocha ./test/**/*.spec.js"
+    "ci": "webpack --config ./webpack.config.ci.js",
+    "test": "mocha ./test/**/*.spec.js --timeout 5000"
   },
   "dependencies": {
     "critical": "^1.0.0"
diff --git a/test/cases/generate-critical-css/generate-critical-css.spec.js b/test/cases/generate-critical-css/generate-critical-css.spec.js
index b55b32a..dac014b 100644
--- a/test/cases/generate-critical-css/generate-critical-css.spec.js
+++ b/test/cases/generate-critical-css/generate-critical-css.spec.js
@@ -31,7 +31,7 @@ describe('HtmlCriticalWebpackPlugin Cases: Generate Critical CSS', () => {
         const indexHtmlDom = new JSDOM(indexHtmlString);
         const linkTags = indexHtmlDom.window.document.querySelectorAll('link');
         
-        assert.equal(linkTags.length, 1);
+        assert.equal(linkTags.length, 2);
         assert.equal(linkTags[0].getAttribute('rel'), 'preload');
         assert.equal(linkTags[0].getAttribute('as'), 'style');
 
@@ -45,7 +45,7 @@ describe('HtmlCriticalWebpackPlugin Cases: Generate Critical CSS', () => {
         const indexHtmlDom = new JSDOM(indexHtmlString);
         const noscriptTags = indexHtmlDom.window.document.querySelectorAll('noscript');
         
-        assert.equal(noscriptTags.length, 1);
+        assert.equal(noscriptTags.length, 2);
 
         done();
       });
diff --git a/test/cases/generate-critical-css/index.css b/test/cases/generate-critical-css/index.css
index b84928c..59fb196 100644
--- a/test/cases/generate-critical-css/index.css
+++ b/test/cases/generate-critical-css/index.css
@@ -11,5 +11,5 @@
   
 .fade-appear.fade-appear-active {
   opacity: 1;
-  transition: opacity 600ms ease-in; //ms should match the value of transitionAppearTimeout
+  transition: opacity 600ms ease-in; /* ms should match the value of transitionAppearTimeout */
 }
\ No newline at end of file
diff --git a/test/cases/generate-critical-css/main.css b/test/cases/generate-critical-css/main.css
index ff9f8dd..6d30a33 100644
--- a/test/cases/generate-critical-css/main.css
+++ b/test/cases/generate-critical-css/main.css
@@ -19,7 +19,7 @@
   text-align: center;
   font-weight: 100;
   font-size: 1.4rem;
-  color: $gold;
+  color: yellow;
   width: 100%;
   padding: .55rem;
   white-space: nowrap;
@@ -50,7 +50,7 @@
 }
 
 .card-block a {
-  color: $black;
+  color: #020202;
 }
 
 .card-info {
diff --git a/webpack.config.ci.js b/webpack.config.ci.js
new file mode 100644
index 0000000..e849e29
--- /dev/null
+++ b/webpack.config.ci.js
@@ -0,0 +1,41 @@
+const ExtractTextWebpackPlugin = require('extract-text-webpack-plugin');
+const HtmlWebpackCriticalPlugin = require('./index');
+const HtmlWebpackPlugin = require('html-webpack-plugin');
+const webpack = require('webpack');
+const path = require('path');
+
+const OUTPUT_DIR = path.resolve(__dirname, 'build');
+
+module.exports = {
+  
+  entry: {
+    index: './test/cases/generate-critical-css/index.js'
+  },
+
+  output: {
+    path: OUTPUT_DIR,
+    filename: 'html-crtitical-webpack-plugin.js'
+  },
+
+  module: {
+    rules: [{
+      test: /\.css$/,
+      use: ExtractTextWebpackPlugin.extract({
+        use: ['css-loader']
+      })
+    }]
+  },
+
+  plugins: [
+    new HtmlWebpackPlugin(),
+
+    new ExtractTextWebpackPlugin('styles.[chunkhash].css'),
+    
+    new HtmlWebpackCriticalPlugin({
+      base: OUTPUT_DIR,
+      src: 'index.html',
+      dest: 'index.html',
+      inline: true
+    })
+  ]
+};
\ No newline at end of file