fix

Author: jojozhuang

package-lock.json

@@ -23,6 +23,7 @@
     "bootstrap-select": "^1.13.10",
     "express": "^4.17.1",
     "file-loader": "^1.1.11",
+    "mem": "^6.0.1",
     "mini-css-extract-plugin": "^0.4.5",
     "mkdirp": "^0.5.1",
     "prop-types": "^15.7.2",