fixed failure when params have an object with key = toString (#3)

* fixed failure when params have an object with key = toString

Author: Eli-Siegel1

lib/parameters.js

@@ -62,7 +62,13 @@ Object.assign(Parameters, {
 
   _isPrimitive: function (value) {
     return PRIMITIVE_TYPES.some(function (Primitive) {
-      return [typeof value, String(value)].some(function (val) { return val === Primitive.name.toLowerCase() })
+      let initValue;
+      try {
+         initValue = String(value)
+      } catch (error) {
+        initValue = '';
+      }
+      return [typeof value, initValue].some(function (val) { return val === Primitive.name.toLowerCase() })
     })
   },
 

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "strong-params",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "description": "Rails-style strong parameters for javascript projects. (e.g. Express, Koa)",
   "main": "index.js",
   "scripts": {