fix CWE-1321

Author: WebReflection

cjs/index.js

@@ -27,7 +27,7 @@ const resolver = (input, lazy, parsed, $) => output => {
     const k = ke[y];
     const value = output[k];
     if (value instanceof Primitive) {
-      const tmp = input[value];
+      const tmp = input[+value];
       if (typeof tmp === object && !parsed.has(tmp)) {
         parsed.add(tmp);
         output[k] = ignore;

es.js

@@ -26,7 +26,7 @@ const resolver = (input, lazy, parsed, $) => output => {
     const k = ke[y];
     const value = output[k];
     if (value instanceof Primitive) {
-      const tmp = input[value];
+      const tmp = input[+value];
       if (typeof tmp === object && !parsed.has(tmp)) {
         parsed.add(tmp);
         output[k] = ignore;

esm.js

@@ -38,7 +38,7 @@ self.Flatted = (function (exports) {
         var k = ke[y];
         var value = output[k];
         if (value instanceof Primitive) {
-          var tmp = input[value];
+          var tmp = input[+value];
           if (_typeof(tmp) === object && !parsed.has(tmp)) {
             parsed.add(tmp);
             output[k] = ignore;