diff --git a/demo/vue-cli2/package-lock.json b/demo/vue-cli2/package-lock.json
index 44ebcd0..80288d3 100644
--- a/demo/vue-cli2/package-lock.json
+++ b/demo/vue-cli2/package-lock.json
@@ -1358,6 +1358,12 @@
         "@jridgewell/sourcemap-codec": "1.4.14"
       }
     },
+    "@polka/url": {
+      "version": "1.0.0-next.21",
+      "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.21.tgz",
+      "integrity": "sha512-a5Sab1C4/icpTZVzZc5Ghpz88yQtGOyNqYXcZgOssB2uuAr+wF/MvN6bgtW32q7HHrvBki+BsZ0OuNv6EV3K9g==",
+      "dev": true
+    },
     "@types/json-schema": {
       "version": "7.0.11",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.11.tgz",
@@ -1413,6 +1419,12 @@
         }
       }
     },
+    "acorn-walk": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.2.0.tgz",
+      "integrity": "sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==",
+      "dev": true
+    },
     "ajv": {
       "version": "5.5.2",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
@@ -1640,12 +1652,6 @@
       "integrity": "sha512-z/WhQ5FPySLdvREByI2vZiTWwCnF0moMJ1hK9YQwDTHKh6I7/uSckMetoRGb5UBZPC1z0jlw+n/XCgjeH7y1AQ==",
       "dev": true
     },
-    "async-limiter": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
-      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==",
-      "dev": true
-    },
     "atob": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
@@ -2774,17 +2780,6 @@
       "integrity": "sha512-x+VAiMRL6UPkx+kudNvxTl6hB2XNNCG2r+7wixVfIYwu/2HKRXimwQyaumLjMveWvT2Hkd/cAJw+QBMfJ/EKVw==",
       "dev": true
     },
-    "bfj-node4": {
-      "version": "5.3.1",
-      "resolved": "https://registry.npmjs.org/bfj-node4/-/bfj-node4-5.3.1.tgz",
-      "integrity": "sha512-SOmOsowQWfXc7ybFARsK3C4MCOWzERaOMV/Fl3Tgjs+5dJWyzo3oa127jL44eMbQiAN17J7SvAs2TRxEScTUmg==",
-      "dev": true,
-      "requires": {
-        "bluebird": "^3.5.1",
-        "check-types": "^7.3.0",
-        "tryer": "^1.0.0"
-      }
-    },
     "big.js": {
       "version": "5.2.2",
       "resolved": "https://registry.npmjs.org/big.js/-/big.js-5.2.2.tgz",
@@ -3275,12 +3270,6 @@
         }
       }
     },
-    "check-types": {
-      "version": "7.4.0",
-      "resolved": "https://registry.npmjs.org/check-types/-/check-types-7.4.0.tgz",
-      "integrity": "sha512-YbulWHdfP99UfZ73NcUDlNJhEIDgm9Doq9GhpyXbF+7Aegi3CVV7qqMCKTTqJxlvEvnQBp9IA+dxsGN6xK/nSg==",
-      "dev": true
-    },
     "chokidar": {
       "version": "3.5.3",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.3.tgz",
@@ -5170,12 +5159,6 @@
       "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==",
       "dev": true
     },
-    "ejs": {
-      "version": "2.7.4",
-      "resolved": "https://registry.npmjs.org/ejs/-/ejs-2.7.4.tgz",
-      "integrity": "sha512-7vmuyh5+kuUyJKePhQfRQBhXV5Ce+RnaeeQArKu1EAMpL3WbgMt5WG6uQZpEVvYSSsxMXRKOewtDk9RaTKXRlA==",
-      "dev": true
-    },
     "electron-to-chromium": {
       "version": "1.4.284",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.4.284.tgz",
@@ -5804,12 +5787,6 @@
         }
       }
     },
-    "filesize": {
-      "version": "3.6.1",
-      "resolved": "https://registry.npmjs.org/filesize/-/filesize-3.6.1.tgz",
-      "integrity": "sha512-7KjR1vv6qnicaPMi1iiTcI85CyYwRO/PSFCu6SvqL8jN2Wjt/NIYQTFtFs7fSDCYOstUkEWIQGFUg5YZQfjlcg==",
-      "dev": true
-    },
     "fill-range": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
@@ -6118,13 +6095,12 @@
       "dev": true
     },
     "gzip-size": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/gzip-size/-/gzip-size-4.1.0.tgz",
-      "integrity": "sha512-1g6EPVvIHuPmpAdBBpsIVYLgjzGV/QqcFRJXpMyrqEWG10JhOaTjQeCcjMDyX0Iqfm/Q5M9twR/mbDk5f5MqkA==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/gzip-size/-/gzip-size-6.0.0.tgz",
+      "integrity": "sha512-ax7ZYomf6jqPTQ4+XCpUGyXKHk5WweS+e05MBO4/y3WJ5RkmPXNKvX+bx1behVILVwr6JSQvZAku021CHPXG3Q==",
       "dev": true,
       "requires": {
-        "duplexer": "^0.1.1",
-        "pify": "^3.0.0"
+        "duplexer": "^0.1.2"
       }
     },
     "handle-thing": {
@@ -7723,6 +7699,12 @@
         "run-queue": "^1.0.3"
       }
     },
+    "mrmime": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/mrmime/-/mrmime-1.0.1.tgz",
+      "integrity": "sha512-hzzEagAgDyoU1Q6yg5uI+AorQgdvMCur3FcKf7NhMKWsaYg+RnbTyHRa/9IlLF9rf455MOCtcqqrQQ83pPP7Uw==",
+      "dev": true
+    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -11696,6 +11678,17 @@
         }
       }
     },
+    "sirv": {
+      "version": "1.0.19",
+      "resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.19.tgz",
+      "integrity": "sha512-JuLThK3TnZG1TAKDwNIqNq6QA2afLOCcm+iE8D1Kj3GA40pSPsxQjjJl0J8X3tsR7T+CP1GavpzLwYkgVLWrZQ==",
+      "dev": true,
+      "requires": {
+        "@polka/url": "^1.0.0-next.20",
+        "mrmime": "^1.0.0",
+        "totalist": "^1.0.0"
+      }
+    },
     "slash": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
@@ -12395,6 +12388,12 @@
       "integrity": "sha512-FclLrw8b9bMWf4QlCJuHBEVhSRsqDj6u3nIjAzPeJvgl//1hBlffdlk0MALceL14+koWEdU4ofRAXofbODxQzg==",
       "dev": true
     },
+    "totalist": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/totalist/-/totalist-1.1.0.tgz",
+      "integrity": "sha512-gduQwd1rOdDMGxFG1gEvhV88Oirdo2p+KjoYFU7k2g+i7n6AFFbDQ5kMPUsW0pNbfQsB/cwXvT1i4Bue0s9g5g==",
+      "dev": true
+    },
     "trim-newlines": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
@@ -12407,12 +12406,6 @@
       "integrity": "sha512-WZGXGstmCWgeevgTL54hrCuw1dyMQIzWy7ZfqRJfSmJZBwklI15egmQytFP6bPidmw3M8d5yEowl1niq4vmqZw==",
       "dev": true
     },
-    "tryer": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/tryer/-/tryer-1.0.1.tgz",
-      "integrity": "sha512-c3zayb8/kWWpycWYg87P71E1S1ZL6b6IJxfb5fvsUgsf0S2MVGaDhDXXjDMpdCpfWXqptc+4mXwmiy1ypXqRAA==",
-      "dev": true
-    },
     "tslib": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.1.tgz",
@@ -13295,23 +13288,83 @@
       }
     },
     "webpack-bundle-analyzer": {
-      "version": "2.13.1",
-      "resolved": "https://registry.npmjs.org/webpack-bundle-analyzer/-/webpack-bundle-analyzer-2.13.1.tgz",
-      "integrity": "sha512-rwxyfecTAxoarCC9VlHlIpfQCmmJ/qWD5bpbjkof+7HrNhTNZIwZITxN6CdlYL2axGmwNUQ+tFgcSOiNXMf/sQ==",
+      "version": "4.7.0",
+      "resolved": "https://registry.npmjs.org/webpack-bundle-analyzer/-/webpack-bundle-analyzer-4.7.0.tgz",
+      "integrity": "sha512-j9b8ynpJS4K+zfO5GGwsAcQX4ZHpWV+yRiHDiL+bE0XHJ8NiPYLTNVQdlFYWxtpg9lfAQNlwJg16J9AJtFSXRg==",
       "dev": true,
       "requires": {
-        "acorn": "^5.3.0",
-        "bfj-node4": "^5.2.0",
-        "chalk": "^2.3.0",
-        "commander": "^2.13.0",
-        "ejs": "^2.5.7",
-        "express": "^4.16.2",
-        "filesize": "^3.5.11",
-        "gzip-size": "^4.1.0",
-        "lodash": "^4.17.4",
-        "mkdirp": "^0.5.1",
-        "opener": "^1.4.3",
-        "ws": "^4.0.0"
+        "acorn": "^8.0.4",
+        "acorn-walk": "^8.0.0",
+        "chalk": "^4.1.0",
+        "commander": "^7.2.0",
+        "gzip-size": "^6.0.0",
+        "lodash": "^4.17.20",
+        "opener": "^1.5.2",
+        "sirv": "^1.0.7",
+        "ws": "^7.3.1"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "8.8.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.8.1.tgz",
+          "integrity": "sha512-7zFpHzhnqYKrkYdUjF1HI1bzd0VygEGX8lFk4k5zVMqHEoES+P+7TKI+EvLO9WVMJ8eekdO0aDEK044xTXwPPA==",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "chalk": {
+          "version": "4.1.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
+          "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.1.0",
+            "supports-color": "^7.1.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "commander": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-7.2.0.tgz",
+          "integrity": "sha512-QrWXB+ZQSVPmIWIhtEO9H+gwHaMGYiF5ChvoJ+K9ZGHG/sVsa6yiesAD1GC/x46sET00Xlwo1u49RVVVzvcSkw==",
+          "dev": true
+        },
+        "has-flag": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+          "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+          "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^4.0.0"
+          }
+        }
       }
     },
     "webpack-dev-middleware": {
@@ -13838,14 +13891,10 @@
       "dev": true
     },
     "ws": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-4.1.0.tgz",
-      "integrity": "sha512-ZGh/8kF9rrRNffkLFV4AzhvooEclrOH0xaugmqGsIfFgOE/pIz4fMc4Ef+5HSQqTEug2S9JZIWDR47duDSLfaA==",
-      "dev": true,
-      "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0"
-      }
+      "version": "7.5.9",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.9.tgz",
+      "integrity": "sha512-F+P9Jil7UiSKSkppIiD94dN07AwvFixvLIj1Og1Rl9GGMuNipJnV9JzjD6XuqmAeiswGvUmNLjr5cFuXwNS77Q==",
+      "dev": true
     },
     "xtend": {
       "version": "4.0.2",
diff --git a/demo/vue-cli2/package.json b/demo/vue-cli2/package.json
index 8f5602b..35d2f3b 100644
--- a/demo/vue-cli2/package.json
+++ b/demo/vue-cli2/package.json
@@ -49,7 +49,7 @@
     "vue-style-loader": "^3.0.1",
     "vue-template-compiler": "^2.7.14",
     "webpack": "^3.6.0",
-    "webpack-bundle-analyzer": "^2.9.0",
+    "webpack-bundle-analyzer": "^4.7.0",
     "webpack-dev-server": "^2.9.1",
     "webpack-merge": "^4.1.0"
   },