diff --git a/README.md b/README.md
index b5977c4..11c14fd 100644
--- a/README.md
+++ b/README.md
@@ -166,7 +166,7 @@ This program is free software under [MIT][mit-url] License.
 See the file LICENSE in this distribution for more details.
 
 [repo-url]: https://github.com/sttk/copy-props/
-[npm-img]: https://img.shields.io/badge/npm-v1.4.0-blue.svg
+[npm-img]: https://img.shields.io/badge/npm-v1.4.1-blue.svg
 [npm-url]: https://www.npmjs.org/package/copy-props/
 [mit-img]: https://img.shields.io/badge/license-MIT-green.svg
 [mit-url]: https://opensource.org/licenses.MIT
diff --git a/package.json b/package.json
index 229ce22..d5af48d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "copy-props",
-  "version": "1.4.0",
+  "version": "1.4.1",
   "description": "Copy properties deeply between two objects.",
   "main": "index.js",
   "files": [
diff --git a/test/web/copy-props.test.js b/test/web/copy-props.test.js
index 4c21a6b..1b6d72e 100644
--- a/test/web/copy-props.test.js
+++ b/test/web/copy-props.test.js
@@ -86,9 +86,7 @@ function copyWithFromto(value, keyChain, nodeInfo) {
 
   for (var i = 0, n = dstKeyChains.length; i < n; i++) {
     var dstValue = nodeInfo.convert(value, keyChain, dstKeyChains[i]);
-    if (dstValue !== undefined) {
-      setDeep(nodeInfo.dest, dstKeyChains[i], dstValue);
-    }
+    setDeep(nodeInfo.dest, dstKeyChains[i], dstValue);
   }
 }
 
@@ -8105,38 +8103,42 @@ module.exports = function(obj, fn, opts) {
     return;
   }
 
-  var nodeInfo = isPlainObject(opts) ? objectAssign({}, opts) : {};
-  nodeInfo.depth = 0;
+  if (!isPlainObject(opts)) {
+    opts = {};
+  }
 
-  forEachChild(obj, '', fn, nodeInfo);
+  forEachChild(obj, '', fn, 0, opts);
 };
 
-function forEachChild(node, baseKey, fn, nodeInfo) {
+function forEachChild(node, baseKey, fn, depth, opts) {
   var keys = Object.keys(node);
-  if (typeof nodeInfo.sort === 'function') {
-    var sortedKeys = nodeInfo.sort(keys);
+  if (typeof opts.sort === 'function') {
+    var sortedKeys = opts.sort(keys);
     if (Array.isArray(sortedKeys)) {
       keys = sortedKeys;
     }
   }
 
+  depth += 1;
+
   for (var i = 0, n = keys.length; i < n; i++) {
     var key = keys[i];
     var keyChain = baseKey + '.' + key;
     var value = node[key];
 
-    var childInfo = objectAssign({}, nodeInfo);
-    childInfo.index = i;
-    childInfo.count = n;
-    childInfo.depth = nodeInfo.depth + 1;
-    childInfo.parent = node;
+    var nodeInfo = objectAssign({}, opts);
+    nodeInfo.name = key;
+    nodeInfo.index = i;
+    nodeInfo.count = n;
+    nodeInfo.depth = depth;
+    nodeInfo.parent = node;
 
-    var notDigg = fn(value, keyChain.slice(1), childInfo);
+    var notDigg = fn(value, keyChain.slice(1), nodeInfo);
     if (notDigg || !isPlainObject(value)) {
       continue;
     }
 
-    forEachChild(value, keyChain, fn, childInfo);
+    forEachChild(value, keyChain, fn, depth, opts);
   }
 }
 
diff --git a/web/copy-props.js b/web/copy-props.js
index 5bc8df2..2d8d6e7 100644
--- a/web/copy-props.js
+++ b/web/copy-props.js
@@ -1 +1 @@
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\ No newline at end of file
+!function r(t,n,e){function o(a,c){if(!n[a]){if(!t[a]){var f="function"==typeof require&&require;if(!c&&f)return f(a,!0);if(i)return i(a,!0);var u=new Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var s=n[a]={exports:{}};t[a][0].call(s.exports,function(r){var n=t[a][1][r];return o(n?n:r)},s,s.exports,r,t,n,e)}return n[a].exports}for(var i="function"==typeof require&&require,a=0;a<e.length;a++)o(e[a]);return o}({1:[function(r,t,n){"use strict";function e(r,t,n){if(!l(r)){var e=n.fromto[t];if(e){delete n.fromto[t],Array.isArray(e)||(e=[e]);for(var o=0,i=e.length;o<i;o++){var a=n.convert(r,t,e[o]);u(n.dest,e[o],a)}}}}function o(r,t,n){if(l(r)){for(var e in r)return;return void u(n.dest,t,{})}var o=n.convert(r,t,t);u(n.dest,t,o)}function i(r){return r}function a(r){var t={};for(var n in r){var e=r[n];"string"==typeof e&&(t[n]=e)}return t}function c(r){for(var t={},n=0,e=r.length;n<e;n++){var o=r[n];"string"==typeof o&&(t[o]=o)}return t}function f(r){var t={};for(var n in r){var e=r[n];t[e]||(t[e]=[]),t[e].push(n)}return t}function u(r,t,n){s(r,t.split("."),n)}function s(r,t,n){var e=t.shift();return t.length?(l(r[e])||(r[e]={}),void s(r[e],t,n)):void(void 0!==n&&(r[e]=n))}function p(r,t){for(var n in t){var e=t[n];Array.isArray(e)||(e=[e]);for(var o=0,i=e.length;o<i;o++)u(r,e[o],void 0)}}var v=r("each-props"),l=r("is-plain-object");t.exports=function(r,t,n,u,s){if(l(r)||(r={}),l(t)||(t={}),l(n)?n=a(n):Array.isArray(n)?n=c(n):"boolean"==typeof n?(s=n,u=i,n=null):"function"==typeof n?(s=u,u=n,n=null):n=null,"function"!=typeof u&&("boolean"==typeof u?(s=u,u=i):u=i),"boolean"!=typeof s&&(s=!1),s){var y=r;r=t,t=y,n&&(n=f(n))}var b={dest:t,fromto:n,convert:u};return n?(v(r,e,b),p(t,n)):v(r,o,b),t}},{"each-props":2,"is-plain-object":3}],2:[function(r,t,n){"use strict";function e(r,t,n,a,c){var f=Object.keys(r);if("function"==typeof c.sort){var u=c.sort(f);Array.isArray(u)&&(f=u)}a+=1;for(var s=0,p=f.length;s<p;s++){var v=f[s],l=t+"."+v,y=r[v],b=i({},c);b.name=v,b.index=s,b.count=p,b.depth=a,b.parent=r;var j=n(y,l.slice(1),b);!j&&o(y)&&e(y,l,n,a,c)}}var o=r("is-plain-object"),i=r("object-assign");t.exports=function(r,t,n){o(r)&&"function"==typeof t&&(o(n)||(n={}),e(r,"",t,0,n))}},{"is-plain-object":3,"object-assign":5}],3:[function(r,t,n){"use strict";function e(r){return o(r)===!0&&"[object Object]"===Object.prototype.toString.call(r)}var o=r("isobject");t.exports=function(r){var t,n;return e(r)!==!1&&(t=r.constructor,"function"==typeof t&&(n=t.prototype,e(n)!==!1&&n.hasOwnProperty("isPrototypeOf")!==!1))}},{isobject:4}],4:[function(r,t,n){"use strict";t.exports=function(r){return null!=r&&"object"==typeof r&&!Array.isArray(r)}},{}],5:[function(r,t,n){"use strict";function e(r){if(null===r||void 0===r)throw new TypeError("Object.assign cannot be called with null or undefined");return Object(r)}function o(){try{if(!Object.assign)return!1;var r=new String("abc");if(r[5]="de","5"===Object.getOwnPropertyNames(r)[0])return!1;for(var t={},n=0;n<10;n++)t["_"+String.fromCharCode(n)]=n;var e=Object.getOwnPropertyNames(t).map(function(r){return t[r]});if("0123456789"!==e.join(""))return!1;var o={};return"abcdefghijklmnopqrst".split("").forEach(function(r){o[r]=r}),"abcdefghijklmnopqrst"===Object.keys(Object.assign({},o)).join("")}catch(r){return!1}}var i=Object.getOwnPropertySymbols,a=Object.prototype.hasOwnProperty,c=Object.prototype.propertyIsEnumerable;t.exports=o()?Object.assign:function(r,t){for(var n,o,f=e(r),u=1;u<arguments.length;u++){n=Object(arguments[u]);for(var s in n)a.call(n,s)&&(f[s]=n[s]);if(i){o=i(n);for(var p=0;p<o.length;p++)c.call(n,o[p])&&(f[o[p]]=n[o[p]])}}return f}},{}]},{},[1]);
\ No newline at end of file