Fix typescript crash

package-lock.json

@@ -355,6 +355,7 @@
       "version": "24.0.22",
       "resolved": "https://registry.npmjs.org/@types/jest/-/jest-24.0.22.tgz",
       "integrity": "sha512-t2OvhNZnrNjlzi2i0/cxbLVM59WN15I2r1Qtb7wDv28PnV9IzrPtagFRey/S9ezdLD0zyh1XGMQIEQND2YEfrw==",
+      "dev": true,
       "requires": {
         "@types/jest-diff": "*"
       }
@@ -362,7 +363,8 @@
     "@types/jest-diff": {
       "version": "20.0.1",
       "resolved": "https://registry.npmjs.org/@types/jest-diff/-/jest-diff-20.0.1.tgz",
-      "integrity": "sha512-yALhelO3i0hqZwhjtcr6dYyaLoCHbAMshwtj6cGxTvHZAKXHsYGdff6E8EPw3xLKY0ELUTQ69Q1rQiJENnccMA=="
+      "integrity": "sha512-yALhelO3i0hqZwhjtcr6dYyaLoCHbAMshwtj6cGxTvHZAKXHsYGdff6E8EPw3xLKY0ELUTQ69Q1rQiJENnccMA==",
+      "dev": true
     },
     "@types/lodash": {
       "version": "4.14.146",
@@ -2617,8 +2619,7 @@
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
       "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "basic-auth": {
       "version": "2.0.1",
@@ -3147,14 +3148,6 @@
       "dev": true,
       "requires": {
         "base64-js": "^1.1.2"
-      },
-      "dependencies": {
-        "base64-js": {
-          "version": "1.3.1",
-          "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
-          "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==",
-          "dev": true
-        }
       }
     },
     "browserify-aes": {
@@ -6393,18 +6386,24 @@
           }
         },
         "http-errors": {
-          "version": "1.7.2",
-          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.7.2.tgz",
-          "integrity": "sha512-uUQBt3H/cSIVfch6i1EuPNy/YsRSOUBXTVfZ+yR7Zjez3qjBz6i9+i4zjNaoqcoFVI4lQJ5plg63TvGfRSDCRg==",
+          "version": "1.7.3",
+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.7.3.tgz",
+          "integrity": "sha512-ZTTX0MWrsQ2ZAhA1cejAwDLycFsd7I7nVtnkT3Ol0aqodaKW+0CTZDQ1uBv5whptCnc8e8HeRRJxRs0kmm/Qfw==",
           "dev": true,
           "requires": {
             "depd": "~1.1.2",
-            "inherits": "2.0.3",
+            "inherits": "2.0.4",
             "setprototypeof": "1.1.1",
             "statuses": ">= 1.5.0 < 2",
             "toidentifier": "1.0.0"
           }
         },
+        "inherits": {
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
+          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+          "dev": true
+        },
         "ipaddr.js": {
           "version": "1.9.0",
           "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.0.tgz",