diff --git a/example/package-lock.json b/example/package-lock.json
index 3fe23bd..8da5f15 100644
--- a/example/package-lock.json
+++ b/example/package-lock.json
@@ -99,7 +99,7 @@
     "array-flatten": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
-      "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+      "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg=="
     },
     "array-union": {
       "version": "1.0.2",
@@ -224,7 +224,7 @@
     },
     "babel-core": {
       "version": "6.13.2",
-      "resolved": "http://registry.npmjs.org/babel-core/-/babel-core-6.13.2.tgz",
+      "resolved": "https://registry.npmjs.org/babel-core/-/babel-core-6.13.2.tgz",
       "integrity": "sha1-92HhGZNh1abtFvk86AGtUKytszg=",
       "dev": true,
       "requires": {
@@ -1303,20 +1303,61 @@
       "dev": true
     },
     "body-parser": {
-      "version": "1.18.3",
-      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
-      "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
+      "version": "1.20.1",
+      "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.1.tgz",
+      "integrity": "sha512-jWi7abTbYwajOytWCQc37VulmWiRae5RyTpaCyDcS5/lMdtwSz5lOpDE67srw/HYe35f1z3fDQw+3txg7gNtWw==",
       "requires": {
-        "bytes": "3.0.0",
-        "content-type": "1.0.4",
+        "bytes": "3.1.2",
+        "content-type": "~1.0.4",
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "http-errors": "1.6.3",
-        "iconv-lite": "0.4.23",
-        "on-finished": "2.3.0",
-        "qs": "6.5.2",
-        "raw-body": "2.3.3",
-        "type-is": "1.6.16"
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "on-finished": "2.4.1",
+        "qs": "6.11.0",
+        "raw-body": "2.5.1",
+        "type-is": "~1.6.18",
+        "unpipe": "1.0.0"
+      },
+      "dependencies": {
+        "bytes": {
+          "version": "3.1.2",
+          "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+          "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg=="
+        },
+        "depd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+          "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw=="
+        },
+        "http-errors": {
+          "version": "2.0.0",
+          "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-2.0.0.tgz",
+          "integrity": "sha512-FtwrG/euBzaEjYeRqOgly7G0qviiXoJWnvEH2Z1plBdXgbyjv34pHTSb9zoeHMyDy33+DWy5Wt9Wo+TURtOYSQ==",
+          "requires": {
+            "depd": "2.0.0",
+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": "2.0.1",
+            "toidentifier": "1.0.1"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
+        },
+        "statuses": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+          "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ=="
+        }
       }
     },
     "brace-expansion": {
@@ -1523,6 +1564,15 @@
         "unset-value": "1.0.0"
       }
     },
+    "call-bind": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
+      "integrity": "sha512-7O+FbCihrB5WGbFYesctwmTKae6rOiIzmz1icreWJ+0aA7LJfuqhEso2T9ncpcFtzMQtzXf2QGGueWJGTYsqrA==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2"
+      }
+    },
     "camelcase": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-1.2.1.tgz",
@@ -1559,7 +1609,7 @@
     },
     "chalk": {
       "version": "1.1.3",
-      "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
       "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
       "dev": true,
       "requires": {
@@ -1807,9 +1857,19 @@
       "dev": true
     },
     "content-disposition": {
-      "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
+      "version": "0.5.4",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
+      "integrity": "sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==",
+      "requires": {
+        "safe-buffer": "5.2.1"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+        }
+      }
     },
     "content-type": {
       "version": "1.0.4",
@@ -1826,14 +1886,14 @@
       }
     },
     "cookie": {
-      "version": "0.3.1",
-      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
-      "integrity": "sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s="
+      "version": "0.5.0",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.5.0.tgz",
+      "integrity": "sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw=="
     },
     "cookie-signature": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
-      "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
+      "integrity": "sha512-QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ=="
     },
     "copy-concurrently": {
       "version": "1.0.5",
@@ -2131,7 +2191,8 @@
     "depd": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
-      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak="
+      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=",
+      "dev": true
     },
     "des.js": {
       "version": "1.0.0",
@@ -2144,9 +2205,9 @@
       }
     },
     "destroy": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
-      "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
+      "integrity": "sha512-2sJGJTaXIIaR1w4iJSNoN0hnMY7Gpc/n8D4qSCJw8QqFWXf7cuAgnEHxBpweaVcPevC2l3KpjYCx3NypQQgaJg=="
     },
     "detect-indent": {
       "version": "4.0.0",
@@ -2205,7 +2266,7 @@
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
-      "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
+      "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow=="
     },
     "electron-to-chromium": {
       "version": "1.3.77",
@@ -2237,7 +2298,7 @@
     "encodeurl": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
-      "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
+      "integrity": "sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w=="
     },
     "end-of-stream": {
       "version": "1.4.1",
@@ -2313,7 +2374,7 @@
     "etag": {
       "version": "1.8.1",
       "resolved": "https://registry.npmjs.org/etag/-/etag-1.8.1.tgz",
-      "integrity": "sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc="
+      "integrity": "sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg=="
     },
     "eventemitter3": {
       "version": "3.1.0",
@@ -2424,40 +2485,117 @@
       }
     },
     "express": {
-      "version": "4.16.4",
-      "resolved": "https://registry.npmjs.org/express/-/express-4.16.4.tgz",
-      "integrity": "sha512-j12Uuyb4FMrd/qQAm6uCHAkPtO8FDTRJZBDd5D2KOL2eLaz1yUNdUB/NOIyq0iU4q4cFarsUCrnFDPBcnksuOg==",
+      "version": "4.18.2",
+      "resolved": "https://registry.npmjs.org/express/-/express-4.18.2.tgz",
+      "integrity": "sha512-5/PsL6iGPdfQ/lKM1UuielYgv3BUoJfz1aUwU9vHZ+J7gyvwdQXFEBIEIaxeGf0GIcreATNyBExtalisDbuMqQ==",
       "requires": {
-        "accepts": "1.3.5",
+        "accepts": "~1.3.8",
         "array-flatten": "1.1.1",
-        "body-parser": "1.18.3",
-        "content-disposition": "0.5.2",
-        "content-type": "1.0.4",
-        "cookie": "0.3.1",
+        "body-parser": "1.20.1",
+        "content-disposition": "0.5.4",
+        "content-type": "~1.0.4",
+        "cookie": "0.5.0",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
-        "finalhandler": "1.1.1",
+        "depd": "2.0.0",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
+        "finalhandler": "1.2.0",
         "fresh": "0.5.2",
+        "http-errors": "2.0.0",
         "merge-descriptors": "1.0.1",
-        "methods": "1.1.2",
-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
+        "methods": "~1.1.2",
+        "on-finished": "2.4.1",
+        "parseurl": "~1.3.3",
         "path-to-regexp": "0.1.7",
-        "proxy-addr": "2.0.4",
-        "qs": "6.5.2",
-        "range-parser": "1.2.0",
-        "safe-buffer": "5.1.2",
-        "send": "0.16.2",
-        "serve-static": "1.13.2",
-        "setprototypeof": "1.1.0",
-        "statuses": "1.4.0",
-        "type-is": "1.6.16",
+        "proxy-addr": "~2.0.7",
+        "qs": "6.11.0",
+        "range-parser": "~1.2.1",
+        "safe-buffer": "5.2.1",
+        "send": "0.18.0",
+        "serve-static": "1.15.0",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
+        "type-is": "~1.6.18",
         "utils-merge": "1.0.1",
-        "vary": "1.1.2"
+        "vary": "~1.1.2"
+      },
+      "dependencies": {
+        "accepts": {
+          "version": "1.3.8",
+          "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+          "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+          "requires": {
+            "mime-types": "~2.1.34",
+            "negotiator": "0.6.3"
+          }
+        },
+        "depd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+          "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw=="
+        },
+        "http-errors": {
+          "version": "2.0.0",
+          "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-2.0.0.tgz",
+          "integrity": "sha512-FtwrG/euBzaEjYeRqOgly7G0qviiXoJWnvEH2Z1plBdXgbyjv34pHTSb9zoeHMyDy33+DWy5Wt9Wo+TURtOYSQ==",
+          "requires": {
+            "depd": "2.0.0",
+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": "2.0.1",
+            "toidentifier": "1.0.1"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "mime-db": {
+          "version": "1.52.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+          "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg=="
+        },
+        "mime-types": {
+          "version": "2.1.35",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+          "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+          "requires": {
+            "mime-db": "1.52.0"
+          }
+        },
+        "negotiator": {
+          "version": "0.6.3",
+          "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
+          "integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg=="
+        },
+        "parseurl": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        },
+        "range-parser": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
+          "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg=="
+        },
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
+        },
+        "statuses": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+          "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ=="
+        }
       }
     },
     "extend-shallow": {
@@ -2597,17 +2735,29 @@
       }
     },
     "finalhandler": {
-      "version": "1.1.1",
-      "resolved": "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
-      "integrity": "sha512-Y1GUDo39ez4aHAw7MysnUD5JzYX+WaIj8I57kO3aEPT1fFRL4sr7mjei97FgnwhAyyzRYmQZaTHb2+9uZ1dPtg==",
+      "version": "1.2.0",
+      "resolved": "http://registry.npmjs.org/finalhandler/-/finalhandler-1.2.0.tgz",
+      "integrity": "sha512-5uXcUVftlQMFnWC9qu/svkWv3GTd2PfUhK/3PLkYNAe7FbqJMt3515HaxE6eRL74GdsriiwujiawdaB1BpEISg==",
       "requires": {
         "debug": "2.6.9",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
-        "statuses": "1.4.0",
-        "unpipe": "1.0.0"
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "on-finished": "2.4.1",
+        "parseurl": "~1.3.3",
+        "statuses": "2.0.1",
+        "unpipe": "~1.0.0"
+      },
+      "dependencies": {
+        "parseurl": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        },
+        "statuses": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+          "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ=="
+        }
       }
     },
     "find-cache-dir": {
@@ -2682,9 +2832,9 @@
       }
     },
     "forwarded": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.1.2.tgz",
-      "integrity": "sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ="
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz",
+      "integrity": "sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow=="
     },
     "fragment-cache": {
       "version": "0.2.1",
@@ -2698,7 +2848,7 @@
     "fresh": {
       "version": "0.5.2",
       "resolved": "https://registry.npmjs.org/fresh/-/fresh-0.5.2.tgz",
-      "integrity": "sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac="
+      "integrity": "sha512-zJ2mQYM18rEFOudeV4GShTGIQ7RbzA7ozbU9I/XBpm7kqgMywgmylMwXHxZJmkVoYkna9d2pVXVXPdYTP9ej8Q=="
     },
     "from2": {
       "version": "2.3.0",
@@ -2748,7 +2898,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -2769,12 +2920,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "1.0.0",
             "concat-map": "0.0.1"
@@ -2789,17 +2942,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -2916,7 +3072,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -2928,6 +3085,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -2942,6 +3100,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.11"
           }
@@ -2949,12 +3108,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.1.1",
             "yallist": "3.0.2"
@@ -2973,6 +3134,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3053,7 +3215,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3065,6 +3228,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -3150,7 +3314,8 @@
         "safe-buffer": {
           "version": "5.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -3186,6 +3351,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -3205,6 +3371,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -3248,20 +3415,21 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yallist": {
           "version": "3.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
     "function-bind": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
-      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
-      "dev": true
+      "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A=="
     },
     "get-caller-file": {
       "version": "1.0.3",
@@ -3269,6 +3437,16 @@
       "integrity": "sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==",
       "dev": true
     },
+    "get-intrinsic": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.1.3.tgz",
+      "integrity": "sha512-QJVz1Tj7MS099PevUG5jvnt9tSkXN8K14dxQlikJuPt4uD9hHAHjLyLBiLR5zELelBdD9QNRAXZzsJx0WaDL9A==",
+      "requires": {
+        "function-bind": "^1.1.1",
+        "has": "^1.0.3",
+        "has-symbols": "^1.0.3"
+      }
+    },
     "get-value": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/get-value/-/get-value-2.0.6.tgz",
@@ -3386,7 +3564,6 @@
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
       "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
-      "dev": true,
       "requires": {
         "function-bind": "1.1.1"
       }
@@ -3406,6 +3583,11 @@
       "integrity": "sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=",
       "dev": true
     },
+    "has-symbols": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.3.tgz",
+      "integrity": "sha512-l3LCuF6MgDNwTDKkdYGEihYjt5pRPbEg46rtlmnSPlUbgmB8LOIrKJbYYFBSbnPaJexMKtiPO8hmeRjRz2Td+A=="
+    },
     "has-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/has-value/-/has-value-1.0.0.tgz",
@@ -3522,6 +3704,7 @@
       "version": "1.6.3",
       "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
       "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
+      "dev": true,
       "requires": {
         "depd": "1.1.2",
         "inherits": "2.0.3",
@@ -3647,11 +3830,11 @@
       "dev": true
     },
     "iconv-lite": {
-      "version": "0.4.23",
-      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.23.tgz",
-      "integrity": "sha512-neyTUVFtahjf0mB3dZT77u+8O0QB89jFdnBkd5P1JgYPbPaia3gXXOVL2fq8VyU2gMMD7SaN7QukTB/pmXYvDA==",
+      "version": "0.4.24",
+      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+      "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
       "requires": {
-        "safer-buffer": "2.1.2"
+        "safer-buffer": ">= 2.1.2 < 3"
       }
     },
     "icss-replace-symbols": {
@@ -3709,7 +3892,8 @@
     "inherits": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
+      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
+      "dev": true
     },
     "interpret": {
       "version": "1.1.0",
@@ -3732,9 +3916,9 @@
       "dev": true
     },
     "ipaddr.js": {
-      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.8.0.tgz",
-      "integrity": "sha1-6qM9bd16zo9/b+DJygRA5wZzix4="
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz",
+      "integrity": "sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g=="
     },
     "is-absolute-url": {
       "version": "2.1.0",
@@ -4207,7 +4391,7 @@
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
-      "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
+      "integrity": "sha512-dq+qelQ9akHpcOl/gUVRTxVIOkAJ1wR3QAvb4RsVjS8oVoFjDGTc679wJYmUmknUF5HwMLOgb5O+a3KxfWapPQ=="
     },
     "memory-fs": {
       "version": "0.3.0",
@@ -4222,12 +4406,12 @@
     "merge-descriptors": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
-      "integrity": "sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E="
+      "integrity": "sha512-cCi6g3/Zr1iqQi6ySbseM1Xvooa98N0w31jzUYrXPX2xqObmFGHJ0tQ5u74H3mVh7wLouTseZyYIq39g8cNp1w=="
     },
     "methods": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
-      "integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4="
+      "integrity": "sha512-iclAHeNqNm68zFtnZ0e+1L2yUIdvzNoauKU4WBA3VvH/vPFieF7qfRlwUZU+DA9P9bPXIS90ulxoUoCH23sV2w=="
     },
     "micromatch": {
       "version": "3.1.10",
@@ -4269,9 +4453,9 @@
       }
     },
     "mime": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/mime/-/mime-1.4.1.tgz",
-      "integrity": "sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ=="
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
+      "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg=="
     },
     "mime-db": {
       "version": "1.36.0",
@@ -4557,6 +4741,11 @@
         }
       }
     },
+    "object-inspect": {
+      "version": "1.12.2",
+      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.12.2.tgz",
+      "integrity": "sha512-z+cPxW0QGUp0mcqcsgQyLVRDoXFQbXOwBaqyF7VIgI4TWNQsDHrBpUQslRmIfAoYWdYzs6UlKJtB2XJpTaNSpQ=="
+    },
     "object-visit": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/object-visit/-/object-visit-1.0.1.tgz",
@@ -4586,9 +4775,9 @@
       }
     },
     "on-finished": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
-      "integrity": "sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=",
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
+      "integrity": "sha512-oVlzkg3ENAhCk2zdv7IJwd/QUD4z2RxRwpkcGY8psCVcCYZNq4wYnVWALHM+brtuJjePWiYF/ClmuDr8Ch5+kg==",
       "requires": {
         "ee-first": "1.1.1"
       }
@@ -4744,7 +4933,8 @@
     "parseurl": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.2.tgz",
-      "integrity": "sha1-/CidTtiZMRlGDBViUyYs3I3mW/M="
+      "integrity": "sha1-/CidTtiZMRlGDBViUyYs3I3mW/M=",
+      "dev": true
     },
     "pascalcase": {
       "version": "0.1.1",
@@ -4779,7 +4969,7 @@
     "path-to-regexp": {
       "version": "0.1.7",
       "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
-      "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
+      "integrity": "sha512-5DFkuoqlv1uYQKxy8omFBeJPQcdoE07Kv2sferDCrAq1ohOU+MSDswDIbnx3YAM60qIOnYa53wBhXW0EbMonrQ=="
     },
     "path-type": {
       "version": "3.0.0",
@@ -5500,12 +5690,12 @@
       }
     },
     "proxy-addr": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.4.tgz",
-      "integrity": "sha512-5erio2h9jp5CHGwcybmxmVqHmnCBZeewlfJ0pex+UW7Qny7OOZXTtH56TGNyBizkgiOwhJtMKrVzDTeKcySZwA==",
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz",
+      "integrity": "sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg==",
       "requires": {
-        "forwarded": "0.1.2",
-        "ipaddr.js": "1.8.0"
+        "forwarded": "0.2.0",
+        "ipaddr.js": "1.9.1"
       }
     },
     "prr": {
@@ -5568,9 +5758,12 @@
       "dev": true
     },
     "qs": {
-      "version": "6.5.2",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
-      "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
+      "version": "6.11.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.11.0.tgz",
+      "integrity": "sha512-MvjoMCJwEarSbUYk5O+nmoSzSutSsTwF85zcHPQ9OrlFoZOYIjaqBAJIqIXjptyD5vThxGq52Xu/MaJzRkIk4Q==",
+      "requires": {
+        "side-channel": "^1.0.4"
+      }
     },
     "query-string": {
       "version": "4.3.4",
@@ -5647,17 +5840,57 @@
     "range-parser": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.0.tgz",
-      "integrity": "sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4="
+      "integrity": "sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=",
+      "dev": true
     },
     "raw-body": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.3.3.tgz",
-      "integrity": "sha512-9esiElv1BrZoI3rCDuOuKCBRbuApGGaDPQfjSflGxdy4oyzqghxu6klEkkVIvBje+FF0BX9coEv8KqW6X/7njw==",
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.5.1.tgz",
+      "integrity": "sha512-qqJBtEyVgS0ZmPGdCFPWJ3FreoqvG4MVQln/kCgF7Olq95IbOp0/BWyMwbdtn4VTvkM8Y7khCQ2Xgk/tcrCXig==",
       "requires": {
-        "bytes": "3.0.0",
-        "http-errors": "1.6.3",
-        "iconv-lite": "0.4.23",
+        "bytes": "3.1.2",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
         "unpipe": "1.0.0"
+      },
+      "dependencies": {
+        "bytes": {
+          "version": "3.1.2",
+          "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+          "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg=="
+        },
+        "depd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+          "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw=="
+        },
+        "http-errors": {
+          "version": "2.0.0",
+          "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-2.0.0.tgz",
+          "integrity": "sha512-FtwrG/euBzaEjYeRqOgly7G0qviiXoJWnvEH2Z1plBdXgbyjv34pHTSb9zoeHMyDy33+DWy5Wt9Wo+TURtOYSQ==",
+          "requires": {
+            "depd": "2.0.0",
+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": "2.0.1",
+            "toidentifier": "1.0.1"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
+        },
+        "statuses": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+          "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ=="
+        }
       }
     },
     "raw-loader": {
@@ -6129,23 +6362,67 @@
       "dev": true
     },
     "send": {
-      "version": "0.16.2",
-      "resolved": "https://registry.npmjs.org/send/-/send-0.16.2.tgz",
-      "integrity": "sha512-E64YFPUssFHEFBvpbbjr44NCLtI1AohxQ8ZSiJjQLskAdKuriYEP6VyGEsRDH8ScozGpkaX1BGvhanqCwkcEZw==",
+      "version": "0.18.0",
+      "resolved": "https://registry.npmjs.org/send/-/send-0.18.0.tgz",
+      "integrity": "sha512-qqWzuOjSFOuqPjFe4NOsMLafToQQwBSOEpS+FwEt3A2V3vKubTquT3vmLTQpFgMXp8AlFWFuP1qKaJZOtPpVXg==",
       "requires": {
         "debug": "2.6.9",
-        "depd": "1.1.2",
-        "destroy": "1.0.4",
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
         "fresh": "0.5.2",
-        "http-errors": "1.6.3",
-        "mime": "1.4.1",
-        "ms": "2.0.0",
-        "on-finished": "2.3.0",
-        "range-parser": "1.2.0",
-        "statuses": "1.4.0"
+        "http-errors": "2.0.0",
+        "mime": "1.6.0",
+        "ms": "2.1.3",
+        "on-finished": "2.4.1",
+        "range-parser": "~1.2.1",
+        "statuses": "2.0.1"
+      },
+      "dependencies": {
+        "depd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+          "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw=="
+        },
+        "http-errors": {
+          "version": "2.0.0",
+          "resolved": "http://registry.npmjs.org/http-errors/-/http-errors-2.0.0.tgz",
+          "integrity": "sha512-FtwrG/euBzaEjYeRqOgly7G0qviiXoJWnvEH2Z1plBdXgbyjv34pHTSb9zoeHMyDy33+DWy5Wt9Wo+TURtOYSQ==",
+          "requires": {
+            "depd": "2.0.0",
+            "inherits": "2.0.4",
+            "setprototypeof": "1.2.0",
+            "statuses": "2.0.1",
+            "toidentifier": "1.0.1"
+          }
+        },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
+        },
+        "range-parser": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz",
+          "integrity": "sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg=="
+        },
+        "setprototypeof": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+          "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
+        },
+        "statuses": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
+          "integrity": "sha512-RwNA9Z/7PrK06rYLIzFMlaF+l73iwpzsqRIFgbMLbTcLD6cOao82TaWefPXQvB2fOC4AjuYSEndS7N/mTCbkdQ=="
+        }
       }
     },
     "serialize-javascript": {
@@ -6170,14 +6447,21 @@
       }
     },
     "serve-static": {
-      "version": "1.13.2",
-      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
-      "integrity": "sha512-p/tdJrO4U387R9oMjb1oj7qSMaMfmOyd4j9hOFoxZe2baQszgHcSWjuya/CiT5kgZZKRudHNOA0pYXOl8rQ5nw==",
-      "requires": {
-        "encodeurl": "1.0.2",
-        "escape-html": "1.0.3",
-        "parseurl": "1.3.2",
-        "send": "0.16.2"
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.15.0.tgz",
+      "integrity": "sha512-XGuRDNjXUijsUL0vl6nSD7cwURuzEgglbOaFuZM9g3kwDXOWVTck0jLzjPzGD+TazWbboZYu52/9/XPdUgne9g==",
+      "requires": {
+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
+        "parseurl": "~1.3.3",
+        "send": "0.18.0"
+      },
+      "dependencies": {
+        "parseurl": {
+          "version": "1.3.3",
+          "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
+          "integrity": "sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ=="
+        }
       }
     },
     "set-blocking": {
@@ -6212,7 +6496,8 @@
     "setprototypeof": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
-      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ=="
+      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ==",
+      "dev": true
     },
     "sha.js": {
       "version": "2.4.11",
@@ -6230,6 +6515,16 @@
       "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
       "dev": true
     },
+    "side-channel": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.4.tgz",
+      "integrity": "sha512-q5XPytqFEIKHkGdiMIrY10mvLRvnQh42/+GoBlFW3b2LXLE2xxJpZFdm94we0BaoV3RwJyGqg5wS7epxTv0Zvw==",
+      "requires": {
+        "call-bind": "^1.0.0",
+        "get-intrinsic": "^1.0.2",
+        "object-inspect": "^1.9.0"
+      }
+    },
     "slash": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
@@ -6540,7 +6835,8 @@
     "statuses": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.4.0.tgz",
-      "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew=="
+      "integrity": "sha512-zhSCtt8v2NDrRlPQpCNtw/heZLtfUDqxBM1udqikb/Hbk52LK4nQSwr10u77iopCW5LsyHpuXS0GnEc48mLeew==",
+      "dev": true
     },
     "stream-browserify": {
       "version": "2.0.1",
@@ -6743,6 +7039,11 @@
         "repeat-string": "1.6.1"
       }
     },
+    "toidentifier": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
+      "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA=="
+    },
     "trim-right": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
@@ -6756,12 +7057,27 @@
       "dev": true
     },
     "type-is": {
-      "version": "1.6.16",
-      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
-      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
+      "version": "1.6.18",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
+      "integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "2.1.20"
+        "mime-types": "~2.1.24"
+      },
+      "dependencies": {
+        "mime-db": {
+          "version": "1.52.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
+          "integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg=="
+        },
+        "mime-types": {
+          "version": "2.1.35",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
+          "integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
+          "requires": {
+            "mime-db": "1.52.0"
+          }
+        }
       }
     },
     "typedarray": {
@@ -6876,7 +7192,7 @@
     "unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
-      "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+      "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ=="
     },
     "unset-value": {
       "version": "1.0.0",
@@ -6982,7 +7298,7 @@
     "utils-merge": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
-      "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+      "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA=="
     },
     "uuid": {
       "version": "3.3.2",
@@ -7133,6 +7449,170 @@
         "yargs": "4.8.1"
       },
       "dependencies": {
+        "body-parser": {
+          "version": "1.18.3",
+          "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
+          "integrity": "sha512-YQyoqQG3sO8iCmf8+hyVpgHHOv0/hCEFiS4zTGUwTA1HjAFX66wRcNQrVCeJq9pgESMRvUAOvSil5MJlmccuKQ==",
+          "dev": true,
+          "requires": {
+            "bytes": "3.0.0",
+            "content-type": "~1.0.4",
+            "debug": "2.6.9",
+            "depd": "~1.1.2",
+            "http-errors": "~1.6.3",
+            "iconv-lite": "0.4.23",
+            "on-finished": "~2.3.0",
+            "qs": "6.5.2",
+            "raw-body": "2.3.3",
+            "type-is": "~1.6.16"
+          }
+        },
+        "content-disposition": {
+          "version": "0.5.2",
+          "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
+          "integrity": "sha512-kRGRZw3bLlFISDBgwTSA1TMBFN6J6GWDeubmDE3AF+3+yXL8hTWv8r5rkLbqYXY4RjPk/EzHnClI3zQf1cFmHA==",
+          "dev": true
+        },
+        "cookie": {
+          "version": "0.3.1",
+          "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
+          "integrity": "sha512-+IJOX0OqlHCszo2mBUq+SrEbCj6w7Kpffqx60zYbPTFaO4+yYgRjHwcZNpWvaTylDHaV7PPmBHzSecZiMhtPgw==",
+          "dev": true
+        },
+        "destroy": {
+          "version": "1.0.4",
+          "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.0.4.tgz",
+          "integrity": "sha512-3NdhDuEXnfun/z7x9GOElY49LoqVHoGScmOKwmxhsS8N5Y+Z8KyPPDnaSzqWgYt/ji4mqwfTS34Htrk0zPIXVg==",
+          "dev": true
+        },
+        "express": {
+          "version": "4.16.4",
+          "resolved": "https://registry.npmjs.org/express/-/express-4.16.4.tgz",
+          "integrity": "sha512-j12Uuyb4FMrd/qQAm6uCHAkPtO8FDTRJZBDd5D2KOL2eLaz1yUNdUB/NOIyq0iU4q4cFarsUCrnFDPBcnksuOg==",
+          "dev": true,
+          "requires": {
+            "accepts": "~1.3.5",
+            "array-flatten": "1.1.1",
+            "body-parser": "1.18.3",
+            "content-disposition": "0.5.2",
+            "content-type": "~1.0.4",
+            "cookie": "0.3.1",
+            "cookie-signature": "1.0.6",
+            "debug": "2.6.9",
+            "depd": "~1.1.2",
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "etag": "~1.8.1",
+            "finalhandler": "1.1.1",
+            "fresh": "0.5.2",
+            "merge-descriptors": "1.0.1",
+            "methods": "~1.1.2",
+            "on-finished": "~2.3.0",
+            "parseurl": "~1.3.2",
+            "path-to-regexp": "0.1.7",
+            "proxy-addr": "~2.0.4",
+            "qs": "6.5.2",
+            "range-parser": "~1.2.0",
+            "safe-buffer": "5.1.2",
+            "send": "0.16.2",
+            "serve-static": "1.13.2",
+            "setprototypeof": "1.1.0",
+            "statuses": "~1.4.0",
+            "type-is": "~1.6.16",
+            "utils-merge": "1.0.1",
+            "vary": "~1.1.2"
+          }
+        },
+        "finalhandler": {
+          "version": "1.1.1",
+          "resolved": "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz",
+          "integrity": "sha512-Y1GUDo39ez4aHAw7MysnUD5JzYX+WaIj8I57kO3aEPT1fFRL4sr7mjei97FgnwhAyyzRYmQZaTHb2+9uZ1dPtg==",
+          "dev": true,
+          "requires": {
+            "debug": "2.6.9",
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "on-finished": "~2.3.0",
+            "parseurl": "~1.3.2",
+            "statuses": "~1.4.0",
+            "unpipe": "~1.0.0"
+          }
+        },
+        "iconv-lite": {
+          "version": "0.4.23",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.23.tgz",
+          "integrity": "sha512-neyTUVFtahjf0mB3dZT77u+8O0QB89jFdnBkd5P1JgYPbPaia3gXXOVL2fq8VyU2gMMD7SaN7QukTB/pmXYvDA==",
+          "dev": true,
+          "requires": {
+            "safer-buffer": ">= 2.1.2 < 3"
+          }
+        },
+        "mime": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/mime/-/mime-1.4.1.tgz",
+          "integrity": "sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ==",
+          "dev": true
+        },
+        "on-finished": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
+          "integrity": "sha512-ikqdkGAAyf/X/gPhXGvfgAytDZtDbr+bkNUJ0N9h5MI/dmdgCs3l6hoHrcUv41sRKew3jIwrp4qQDXiK99Utww==",
+          "dev": true,
+          "requires": {
+            "ee-first": "1.1.1"
+          }
+        },
+        "qs": {
+          "version": "6.5.2",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
+          "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==",
+          "dev": true
+        },
+        "raw-body": {
+          "version": "2.3.3",
+          "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.3.3.tgz",
+          "integrity": "sha512-9esiElv1BrZoI3rCDuOuKCBRbuApGGaDPQfjSflGxdy4oyzqghxu6klEkkVIvBje+FF0BX9coEv8KqW6X/7njw==",
+          "dev": true,
+          "requires": {
+            "bytes": "3.0.0",
+            "http-errors": "1.6.3",
+            "iconv-lite": "0.4.23",
+            "unpipe": "1.0.0"
+          }
+        },
+        "send": {
+          "version": "0.16.2",
+          "resolved": "https://registry.npmjs.org/send/-/send-0.16.2.tgz",
+          "integrity": "sha512-E64YFPUssFHEFBvpbbjr44NCLtI1AohxQ8ZSiJjQLskAdKuriYEP6VyGEsRDH8ScozGpkaX1BGvhanqCwkcEZw==",
+          "dev": true,
+          "requires": {
+            "debug": "2.6.9",
+            "depd": "~1.1.2",
+            "destroy": "~1.0.4",
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "etag": "~1.8.1",
+            "fresh": "0.5.2",
+            "http-errors": "~1.6.2",
+            "mime": "1.4.1",
+            "ms": "2.0.0",
+            "on-finished": "~2.3.0",
+            "range-parser": "~1.2.0",
+            "statuses": "~1.4.0"
+          }
+        },
+        "serve-static": {
+          "version": "1.13.2",
+          "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.13.2.tgz",
+          "integrity": "sha512-p/tdJrO4U387R9oMjb1oj7qSMaMfmOyd4j9hOFoxZe2baQszgHcSWjuya/CiT5kgZZKRudHNOA0pYXOl8rQ5nw==",
+          "dev": true,
+          "requires": {
+            "encodeurl": "~1.0.2",
+            "escape-html": "~1.0.3",
+            "parseurl": "~1.3.2",
+            "send": "0.16.2"
+          }
+        },
         "supports-color": {
           "version": "3.2.3",
           "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-3.2.3.tgz",
diff --git a/example/package.json b/example/package.json
index fe69a03..29121c6 100644
--- a/example/package.json
+++ b/example/package.json
@@ -8,7 +8,7 @@
   },
   "dependencies": {
     "compression": "^1.6.2",
-    "express": "^4.14.0",
+    "express": "^4.18.2",
     "prop-types": "^15.6.2",
     "react": "^16.0.0",
     "react-dom": "^16.5.2",