Add dep to fix a babel issue.

package-lock.json

@@ -1387,6 +1387,23 @@
         "@babel/highlight": "^7.0.0"
       }
     },
+    "@babel/compat-data": {
+      "version": "7.8.0",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.8.0.tgz",
+      "integrity": "sha512-ixPUWJpnd9hHvRkyIE3mJ6PY5DEWmR08UkcpdqI5kV5g/d6knT8Wth1LE5v5sVTIJkm9dGpQsXnhwxcf2/PjAg==",
+      "requires": {
+        "browserslist": "^4.8.2",
+        "invariant": "^2.2.4",
+        "semver": "^7.1.1"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "7.1.3",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-7.1.3.tgz",
+          "integrity": "sha512-ekM0zfiA9SCBlsKa2X1hxyxiI4L3B6EbVJkkdgQXnSEEaHlGdvyodMruTiulSRWMMB4NeIuYNMC9rTKTz97GxA=="
+        }
+      }
+    },
     "@babel/core": {
       "version": "7.7.5",
       "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.7.5.tgz",
@@ -5931,7 +5948,6 @@
       "version": "4.8.3",
       "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.8.3.tgz",
       "integrity": "sha512-iU43cMMknxG1ClEZ2MDKeonKE1CCrFVkQK2AqO2YWFmvIrx4JWrvQ4w4hQez6EpVI8rHTtqh/ruHHDHSOKxvUg==",
-      "dev": true,
       "requires": {
         "caniuse-lite": "^1.0.30001017",
         "electron-to-chromium": "^1.3.322",
@@ -6151,8 +6167,7 @@
     "caniuse-lite": {
       "version": "1.0.30001019",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001019.tgz",
-      "integrity": "sha512-6ljkLtF1KM5fQ+5ZN0wuyVvvebJxgJPTmScOMaFuQN2QuOzvRJnWSKfzQskQU5IOU4Gap3zasYPIinzwUjoj/g==",
-      "dev": true
+      "integrity": "sha512-6ljkLtF1KM5fQ+5ZN0wuyVvvebJxgJPTmScOMaFuQN2QuOzvRJnWSKfzQskQU5IOU4Gap3zasYPIinzwUjoj/g=="
     },
     "canonical-path": {
       "version": "1.0.0",
@@ -7360,8 +7375,7 @@
     "electron-to-chromium": {
       "version": "1.3.340",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.340.tgz",
-      "integrity": "sha512-hRFBAglhcj5iVYH+o8QU0+XId1WGoc0VGowJB1cuJAt3exHGrivZvWeAO5BRgBZqwZtwxjm8a5MQeGoT/Su3ww==",
-      "dev": true
+      "integrity": "sha512-hRFBAglhcj5iVYH+o8QU0+XId1WGoc0VGowJB1cuJAt3exHGrivZvWeAO5BRgBZqwZtwxjm8a5MQeGoT/Su3ww=="
     },
     "elliptic": {
       "version": "6.5.2",
@@ -8924,7 +8938,6 @@
       "version": "2.2.4",
       "resolved": "https://registry.npmjs.org/invariant/-/invariant-2.2.4.tgz",
       "integrity": "sha512-phJfQVBuaJM5raOpJjSfkiD6BpbCE4Ns//LaXl6wGYtUBY83nWS6Rf9tXm2e8VaK60JEjYldbPif/A2B1C2gNA==",
-      "dev": true,
       "requires": {
         "loose-envify": "^1.0.0"
       }
@@ -9413,8 +9426,7 @@
     "js-tokens": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
-      "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls=",
-      "dev": true
+      "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls="
     },
     "js-yaml": {
       "version": "3.13.1",
@@ -9915,7 +9927,6 @@
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz",
       "integrity": "sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==",
-      "dev": true,
       "requires": {
         "js-tokens": "^3.0.0 || ^4.0.0"
       }
@@ -10585,7 +10596,6 @@
       "version": "1.1.47",
       "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.47.tgz",
       "integrity": "sha512-k4xjVPx5FpwBUj0Gw7uvFOTF4Ep8Hok1I6qjwL3pLfwe7Y0REQSAqOwwv9TWBCUtMHxcXfY4PgRLRozcChvTcA==",
-      "dev": true,
       "requires": {
         "semver": "^6.3.0"
       },
@@ -10593,8 +10603,7 @@
         "semver": {
           "version": "6.3.0",
           "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
-          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
-          "dev": true
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
         }
       }
     },

package.json

@@ -30,6 +30,7 @@
     "@angular/platform-browser": "8.2.14",
     "@angular/platform-browser-dynamic": "8.2.14",
     "@angular/router": "8.2.14",
+    "@babel/compat-data": "^7.8.0",
     "@turf/centroid": "^5.1.5",
     "@turf/helpers": "^6.1.4",
     "@turf/projection": "^6.0.1",