diff --git a/demo/package-lock.json b/demo/package-lock.json
index 9931f52..44c04a8 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -1399,7 +1399,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -1786,7 +1786,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -1845,7 +1845,7 @@
     "connect": {
       "version": "2.30.2",
       "resolved": "https://registry.npmjs.org/connect/-/connect-2.30.2.tgz",
-      "integrity": "sha1-jam8vooFTT0xjXTf7JA7XDmhtgk=",
+      "integrity": "sha512-eY4YHls5bz/g6h9Q8B/aVkS6D7+TRiRlI3ksuruv3yc2rLbTG7HB/7T/CoZsuVH5e2i3S9J+2eARV5o7GIYq8Q==",
       "requires": {
         "basic-auth-connect": "1.0.0",
         "body-parser": "~1.13.3",
@@ -1883,7 +1883,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -1891,12 +1891,12 @@
         "ms": {
           "version": "0.7.1",
           "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
-          "integrity": "sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg="
+          "integrity": "sha512-lRLiIR9fSNpnP6TC4v8+4OU7oStC01esuNowdQ34L+Gk8e5Puoc88IqJ+XAY/B3Mn2ZKis8l8HX90oU8ivzUHg=="
         },
         "qs": {
           "version": "4.0.0",
           "resolved": "https://registry.npmjs.org/qs/-/qs-4.0.0.tgz",
-          "integrity": "sha1-wx2bdOwn33XlQ6hseHKO2NRiNgc="
+          "integrity": "sha512-8MPmJ83uBOPsQj5tQCv4g04/nTiY+d17yl9o3Bw73vC6XlEm2POIRRlOgWJ8i74bkGLII670cDJJZkgiZ2sIkg=="
         }
       }
     },
@@ -1914,7 +1914,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -2817,7 +2817,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -3004,7 +3004,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -3048,13 +3048,19 @@
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "3.2.7",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+          "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+          "dev": true
         }
       }
     },
@@ -3311,14 +3317,6 @@
             }
           }
         },
-        "debug": {
-          "version": "2.6.8",
-          "bundled": true,
-          "optional": true,
-          "requires": {
-            "ms": "2.0.0"
-          }
-        },
         "deep-extend": {
           "version": "0.4.2",
           "bundled": true,
@@ -3623,8 +3621,7 @@
         },
         "ms": {
           "version": "2.0.0",
-          "bundled": true,
-          "optional": true
+          "bundled": true
         },
         "node-pre-gyp": {
           "version": "0.6.39",
@@ -4869,13 +4866,19 @@
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "3.2.7",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+          "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
+        },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+          "dev": true
         }
       }
     },
@@ -6477,7 +6480,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -8042,7 +8045,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -8113,7 +8116,7 @@
         "debug": {
           "version": "2.2.0",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "integrity": "sha512-X0rGvJcskG1c3TgSCPqHJ0XJgwlcvOC7elJ5Y0hYuKBZoVqWpAMfLOeIh2UI/DCQ5ruodIjvsugZtjUYUw2pUw==",
           "requires": {
             "ms": "0.7.1"
           }
@@ -8506,12 +8509,12 @@
       },
       "dependencies": {
         "debug": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "version": "3.2.7",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+          "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
           "dev": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
         },
         "isarray": {
@@ -8520,6 +8523,12 @@
           "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
           "dev": true
         },
+        "ms": {
+          "version": "2.1.3",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+          "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+          "dev": true
+        },
         "readable-stream": {
           "version": "2.3.3",
           "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.3.tgz",
diff --git a/demo/yarn.lock b/demo/yarn.lock
index fc294f2..3cb88ca 100644
--- a/demo/yarn.lock
+++ b/demo/yarn.lock
@@ -3821,7 +3821,7 @@ ms@0.7.2:
 
 ms@2.0.0:
   version "2.0.0"
-  resolved "http://registry.npm.taobao.org/ms/download/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
 ms@^2.0.0:
   version "2.1.1"