handle possible crash in doc get
handle possible crash in doc get

happieio/cordova-plugin-couchbase-lite,happieio/Couchbase-Lite-Cordova-Plugin,happieio/cordova-plugin-couchbase-lite,happieio/Couchbase-Lite-Cordova-Plugin,happieio/cordova-plugin-couchbase-lite,happieio/Couchbase-Lite-Cordova-Plugin,happieio/cordova-plugin-couchbase-lite,happieio/Couchbase-Lite-Cordova-Plugin