diff --git a/.gitignore b/.gitignore
index c062224..52af029 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules/
 coverage/
+coverage.lcov
 .nyc_output*
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 32bf5aa..edf03d3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,3 +3,5 @@ node_js:
   - 10
   - 11
 sudo: false
+script:
+  - npm run report-coverage
diff --git a/README.md b/README.md
index e0702e6..eb3dfdb 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@ reload
 [![Build Status](https://travis-ci.org/alallier/reload.svg?branch=master)](https://travis-ci.org/alallier/reload)
 [![Build status](https://ci.appveyor.com/api/projects/status/4uuui532bpht2ff7/branch/master?svg=true)](https://ci.appveyor.com/project/alallier/reload/branch/master)
 [![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](http://standardjs.com/)
+[![codecov](https://codecov.io/gh/alallier/reload/branch/master/graph/badge.svg)](https://codecov.io/gh/alallier/reload)
 [![NPM version](https://img.shields.io/npm/v/reload.svg)](https://www.npmjs.com/package/reload)
 
 Automatically refresh and reload your code in your browser when your code changes. No browser plugins required.
diff --git a/package-lock.json b/package-lock.json
index cf09506..c420361 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "reload",
-  "version": "2.4.0",
+  "version": "3.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -175,9 +175,9 @@
       }
     },
     "acorn": {
-      "version": "6.0.4",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.4.tgz",
-      "integrity": "sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg==",
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.1.1.tgz",
+      "integrity": "sha512-jPTiwtOxaHNaAPg/dmrJ/beuzLRnXtB0kQPQ8JpotKJgTB6rX6c8mlf315941pyjBSaPg8NHXS9fhP4u17DpGA==",
       "dev": true
     },
     "acorn-jsx": {
@@ -186,10 +186,19 @@
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       "dev": true
     },
+    "agent-base": {
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
+      "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
+      "dev": true,
+      "requires": {
+        "es6-promisify": "^5.0.0"
+      }
+    },
     "ajv": {
-      "version": "6.6.2",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.6.2.tgz",
-      "integrity": "sha512-FBHEW6Jf5TB9MGBgUUA9XHkTbjXYfAUjY43ACMfmdMRHniyoMHjHjzD50OK8LGDWQwp4rWEsIq5kEqq7rvIM1g==",
+      "version": "6.10.0",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
+      "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
       "dev": true,
       "requires": {
         "fast-deep-equal": "^2.0.1",
@@ -199,9 +208,9 @@
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     "ajv-keywords": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.2.0.tgz",
-      "integrity": "sha1-6GuBnGAs+IIa1jdBNpjx3sAhhHo=",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.4.0.tgz",
+      "integrity": "sha512-aUjdRFISbuFOl0EIZc+9e4FfZp0bDZgAdOOf30bJmw8VM9v84SHyVyxDfbWxpGYbdZD/9XoKxfHVNmxPkhwyGw==",
       "dev": true
     },
     "ansi-colors": {
@@ -210,9 +219,9 @@
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     },
     "ansi-escapes": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
-      "integrity": "sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw==",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
+      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
       "dev": true
     },
     "ansi-regex": {
@@ -236,6 +245,12 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "argv": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/argv/-/argv-0.0.2.tgz",
+      "integrity": "sha1-7L0W+JSbFXGDcRsb2jNPN4QBhas=",
+      "dev": true
+    },
     "array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
@@ -310,7 +325,7 @@
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           "version": "2.0.0",
-          "resolved": "http://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
           "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
           "dev": true
         }
@@ -337,17 +352,6 @@
         "qs": "6.5.2",
         "raw-body": "2.3.3",
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-      },
-      "dependencies": {
-        "debug": {
-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "dev": true,
-          "requires": {
-            "ms": "2.0.0"
-          }
-        }
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@@ -364,12 +368,6 @@
       "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
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     },
-    "builtin-modules": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
-      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
-      "dev": true
-    },
     "bytes": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
@@ -397,13 +395,23 @@
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     },
     "chalk": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-      "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
+      "version": "2.4.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+      "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
       "requires": {
         "ansi-styles": "^3.2.1",
         "escape-string-regexp": "^1.0.5",
         "supports-color": "^5.3.0"
+      },
+      "dependencies": {
+        "supports-color": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
       }
     },
     "chardet": {
@@ -461,6 +469,19 @@
       "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
       "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
     },
+    "codecov": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/codecov/-/codecov-3.3.0.tgz",
+      "integrity": "sha512-S70c3Eg9SixumOvxaKE/yKUxb9ihu/uebD9iPO2IR73IdP4i6ZzjXEULj3d0HeyWPr0DqBfDkjNBWxURjVO5hw==",
+      "dev": true,
+      "requires": {
+        "argv": "^0.0.2",
+        "ignore-walk": "^3.0.1",
+        "js-yaml": "^3.12.0",
+        "teeny-request": "^3.7.0",
+        "urlgrey": "^0.4.4"
+      }
+    },
     "color-convert": {
       "version": "1.9.3",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
@@ -535,10 +556,9 @@
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-      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-      "dev": true,
+      "version": "2.6.9",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
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@@ -647,15 +667,16 @@
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-      "version": "1.12.0",
-      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.12.0.tgz",
-      "integrity": "sha512-C8Fx/0jFmV5IPoMOFPA9P9G5NtqW+4cOPit3MIuvR2t7Ag2K15EJTpxnHAYTzL+aYQJIESYeXZmDBfOBE1HcpA==",
+      "version": "1.13.0",
+      "resolved": "https://registry.npmjs.org/es-abstract/-/es-abstract-1.13.0.tgz",
+      "integrity": "sha512-vDZfg/ykNxQVwup/8E1BZhVzFfBxs9NqMzGcvIJrqg5k2/5Za2bWo40dK2J1pgLngZ7c+Shh8lwYtLGyrwPutg==",
       "requires": {
-        "es-to-primitive": "^1.1.1",
+        "es-to-primitive": "^1.2.0",
         "function-bind": "^1.1.1",
-        "has": "^1.0.1",
-        "is-callable": "^1.1.3",
-        "is-regex": "^1.0.4"
+        "has": "^1.0.3",
+        "is-callable": "^1.1.4",
+        "is-regex": "^1.0.4",
+        "object-keys": "^1.0.12"
       }
     },
     "es-to-primitive": {
@@ -669,13 +690,13 @@
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-      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.46.tgz",
-      "integrity": "sha512-24XxRvJXNFwEMpJb3nOkiRJKRoupmjYmOPVlI65Qy2SrtxwOTB+g6ODjBKOtwEHbYrhWRty9xxOWLNdClT2djw==",
+      "version": "0.10.49",
+      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.49.tgz",
+      "integrity": "sha512-3NMEhi57E31qdzmYp2jwRArIUsj1HI/RxbQ4bgnSB+AIKIxsAmTiK83bYMifIcpWvEc3P1X30DhUKOqEtF/kvg==",
       "requires": {
         "es6-iterator": "~2.0.3",
         "es6-symbol": "~3.1.1",
-        "next-tick": "1"
+        "next-tick": "^1.0.0"
       }
     },
     "es6-iterator": {
@@ -688,6 +709,21 @@
         "es6-symbol": "^3.1.1"
       }
     },
+    "es6-promise": {
+      "version": "4.2.6",
+      "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.6.tgz",
+      "integrity": "sha512-aRVgGdnmW2OiySVPUC9e6m+plolMAJKjZnQlCwNSuK5yQ0JN61DZSO1X1Ufd1foqWRAlig0rhduTCHe7sVtK5Q==",
+      "dev": true
+    },
+    "es6-promisify": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/es6-promisify/-/es6-promisify-5.0.0.tgz",
+      "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
+      "dev": true,
+      "requires": {
+        "es6-promise": "^4.0.3"
+      }
+    },
     "es6-symbol": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/es6-symbol/-/es6-symbol-3.1.1.tgz",
@@ -762,6 +798,23 @@
         "strip-json-comments": "^2.0.1",
         "table": "^4.0.3",
         "text-table": "^0.2.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.2.6",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
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+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
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+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
+          "dev": true
+        }
       }
     },
     "eslint-config-standard": {
@@ -784,38 +837,16 @@
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         "resolve": "^1.5.0"
-      },
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-          "dev": true,
-          "requires": {
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-          }
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     "eslint-module-utils": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/eslint-module-utils/-/eslint-module-utils-2.2.0.tgz",
-      "integrity": "sha1-snA2LNiLGkitMIl2zn+lTphBF0Y=",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/eslint-module-utils/-/eslint-module-utils-2.3.0.tgz",
+      "integrity": "sha512-lmDJgeOOjk8hObTysjqH7wyMi+nsHwwvfBykwfhjR1LNdd7C2uFJBvx4OpWYpXOw4df1yE1cDEVd1yLHitk34w==",
       "dev": true,
       "requires": {
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-        "pkg-dir": "^1.0.0"
-      },
-      "dependencies": {
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-          "version": "2.6.9",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-          "dev": true,
-          "requires": {
-            "ms": "2.0.0"
-          }
-        }
+        "pkg-dir": "^2.0.0"
       }
     },
     "eslint-plugin-es": {
@@ -846,15 +877,6 @@
         "resolve": "^1.6.0"
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-          "dev": true,
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         "doctrine": {
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           "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-1.5.0.tgz",
@@ -913,9 +935,9 @@
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-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-4.0.0.tgz",
-      "integrity": "sha512-1G6UTDi7Jc1ELFwnR58HV4fK9OQK4S6N985f166xqXxpjU6plxFISJa2Ba9KCQuFa8RCnj/lSFJbHo7UFDBnUA==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-4.0.3.tgz",
+      "integrity": "sha512-p7VutNr1O/QrxysMo3E45FjYDTeXBy0iTltPFNSqKAIfjDSXC+4dj+qfyuD8bfAXrW/y6lW3O76VaYNPKfpKrg==",
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@@ -1044,17 +1066,6 @@
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-          "dev": true,
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@@ -1117,16 +1128,6 @@
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     "find-root": {
@@ -1136,13 +1137,11 @@
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-      "resolved": "https://registry.npmjs.org/find-up/-/find-up-1.1.2.tgz",
-      "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
-      "dev": true,
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
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       "requires": {
-        "path-exists": "^2.0.0",
-        "pinkie-promise": "^2.0.0"
+        "locate-path": "^3.0.0"
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@@ -1212,10 +1211,9 @@
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-          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
-          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
-          "requires": {
-            "p-limit": "^2.0.0"
-          }
-        },
-        "p-try": {
-          "version": "2.2.0",
-          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
-          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ=="
-        },
-        "path-exists": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
-          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
-        },
         "require-main-filename": {
           "version": "1.0.1",
           "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
diff --git a/package.json b/package.json
index e60cb82..ab52b56 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "ws": "~6.2.1"
   },
   "devDependencies": {
+    "codecov": "3.3.0",
     "sinon": "7.3.1",
     "standard": "12.0.1",
     "express": "4.16.4",
@@ -43,7 +44,8 @@
     "unitTests": "./node_modules/.bin/mocha --recursive --timeout 5000 test",
     "standard": "standard **/*.js bin/**/*",
     "cover": "nyc --reporter=html --reporter=text mocha --timeout 5000 --recursive test",
-    "coverage": "npm run cover"
+    "coverage": "npm run cover",
+    "report-coverage": "nyc npm run unitTests && nyc report --reporter=text-lcov > coverage.lcov && ./node_modules/.bin/codecov"
   },
   "bin": {
     "reload": "./bin/reload"