fix build

package-lock.json

@@ -3378,6 +3378,45 @@
         "typedarray": "^0.0.6"
       }
     },
+    "concurrently": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-5.1.0.tgz",
+      "integrity": "sha512-9ViZMu3OOCID3rBgU31mjBftro2chOop0G2u1olq1OuwRBVRw/GxHTg80TVJBUTJfoswMmEUeuOg1g1yu1X2dA==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.4.2",
+        "date-fns": "^2.0.1",
+        "lodash": "^4.17.15",
+        "read-pkg": "^4.0.1",
+        "rxjs": "^6.5.2",
+        "spawn-command": "^0.0.2-1",
+        "supports-color": "^6.1.0",
+        "tree-kill": "^1.2.2",
+        "yargs": "^13.3.0"
+      },
+      "dependencies": {
+        "read-pkg": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-4.0.1.tgz",
+          "integrity": "sha1-ljYlN48+HE1IyFhytabsfV0JMjc=",
+          "dev": true,
+          "requires": {
+            "normalize-package-data": "^2.3.2",
+            "parse-json": "^4.0.0",
+            "pify": "^3.0.0"
+          }
+        },
+        "supports-color": {
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
+          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
+      }
+    },
     "console-browserify": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/console-browserify/-/console-browserify-1.1.0.tgz",
@@ -3901,6 +3940,12 @@
         "whatwg-url": "^7.0.0"
       }
     },
+    "date-fns": {
+      "version": "2.11.1",
+      "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-2.11.1.tgz",
+      "integrity": "sha512-3RdUoinZ43URd2MJcquzBbDQo+J87cSzB8NkXdZiN5ia1UNyep0oCyitfiL88+R7clGTeq/RniXAc16gWyAu1w==",
+      "dev": true
+    },
     "date-now": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/date-now/-/date-now-0.1.4.tgz",
@@ -4793,6 +4838,12 @@
         "flat-cache": "^2.0.1"
       }
     },
+    "file-size": {
+      "version": "0.0.5",
+      "resolved": "https://registry.npmjs.org/file-size/-/file-size-0.0.5.tgz",
+      "integrity": "sha1-BX1Dw6Ptc12j+Q1gUqs4Dx5tXjs=",
+      "dev": true
+    },
     "filesize": {
       "version": "3.6.1",
       "resolved": "https://registry.npmjs.org/filesize/-/filesize-3.6.1.tgz",
@@ -9414,6 +9465,12 @@
       "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
       "dev": true
     },
+    "spawn-command": {
+      "version": "0.0.2-1",
+      "resolved": "https://registry.npmjs.org/spawn-command/-/spawn-command-0.0.2-1.tgz",
+      "integrity": "sha1-YvXpRmmBwbeW3Fkpk34RycaSG9A=",
+      "dev": true
+    },
     "spdx-correct": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
@@ -9542,6 +9599,70 @@
         "through2": "~2.0.3"
       }
     },
+    "static-server": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/static-server/-/static-server-2.2.1.tgz",
+      "integrity": "sha512-j5eeW6higxYNmXMIT8iHjsdiViTpQDthg7o+SHsRtqdbxscdHqBHXwrXjHC8hL3F0Tsu34ApUpDkwzMBPBsrLw==",
+      "dev": true,
+      "requires": {
+        "chalk": "^0.5.1",
+        "commander": "^2.3.0",
+        "file-size": "0.0.5",
+        "mime": "^1.2.11",
+        "opn": "^5.2.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "0.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-0.2.1.tgz",
+          "integrity": "sha1-DY6UaWej2BQ/k+JOKYUl/BsiNfk=",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-1.1.0.tgz",
+          "integrity": "sha1-6uy/Zs1waIJ2Cy9GkVgrj1XXp94=",
+          "dev": true
+        },
+        "chalk": {
+          "version": "0.5.1",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-0.5.1.tgz",
+          "integrity": "sha1-Zjs6ZItotV0EaQ1JFnqoN4WPIXQ=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^1.1.0",
+            "escape-string-regexp": "^1.0.0",
+            "has-ansi": "^0.1.0",
+            "strip-ansi": "^0.3.0",
+            "supports-color": "^0.2.0"
+          }
+        },
+        "has-ansi": {
+          "version": "0.1.0",
+          "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-0.1.0.tgz",
+          "integrity": "sha1-hPJlqujA5qiKEtcCKJS3VoiUxi4=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^0.2.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "0.3.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-0.3.0.tgz",
+          "integrity": "sha1-JfSOoiynkYfzF0pNuHWTR7sSYiA=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^0.2.1"
+          }
+        },
+        "supports-color": {
+          "version": "0.2.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-0.2.0.tgz",
+          "integrity": "sha1-2S3iaU6z9nMjlz1649i1W0wiGQo=",
+          "dev": true
+        }
+      }
+    },
     "statuses": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
@@ -9925,6 +10046,12 @@
         "punycode": "^2.1.0"
       }
     },
+    "tree-kill": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.2.tgz",
+      "integrity": "sha512-L0Orpi8qGpRG//Nd+H90vFB+3iHnue1zSSGmNOOCh1GLJ7rUKVwV2HvijphGQS2UmhUZewS9VgvxYIdgr+fG1A==",
+      "dev": true
+    },
     "tslib": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.10.0.tgz",

package.json

@@ -16,7 +16,7 @@
   "type": "module",
   "main": "src/index.js",
   "scripts": {
-    "start": "parcel watch example/index.html --out-dir ./example/bundle/ --public-url . --no-cache",
+    "start": "concurrently \"parcel watch example/index.html --out-dir ./example/bundle/ --public-url . --no-cache\" \"static-server\"",
     "lint": "eslint src/**",
     "test": "jest"
   },
@@ -33,12 +33,14 @@
     "@babel/core": "^7.7.2",
     "@babel/preset-env": "^7.7.1",
     "babel-jest": "^24.9.0",
+    "concurrently": "^5.1.0",
     "eslint": "^6.5.1",
     "eslint-config-mdcs": "^4.2.3",
     "eslint-plugin-jest": "^23.8.2",
     "jest": "^24.9.0",
     "jest-cli": "^24.9.0",
     "parcel-bundler": "^1.12.4",
+    "static-server": "^2.2.1",
     "three": ">=0.114.0"
   },
   "peerDependencies": {