Merge pull request #39 from icd2k3/fix-key-warning-for-optional-params

Fixes issue with duplicate key warning if using optional params

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-router-breadcrumbs-hoc",
-  "version": "2.1.3",
+  "version": "2.1.4",
   "description": "Just a tiny, flexible, higher order component for rendering breadcrumbs with react-router 4.x",
   "repository": "icd2k3/react-router-breadcrumbs-hoc",
   "keywords": [
@@ -23,8 +23,8 @@
     "humanize-string": "^1.0.2"
   },
   "devDependencies": {
-    "@types/react": "^16.3.14",
-    "@types/react-router-dom": "^4.2.6",
+    "@types/react": "^16.3.18",
+    "@types/react-router-dom": "^4.2.7",
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.3",
     "babel-eslint": "^8.2.3",
@@ -41,18 +41,18 @@
     "eslint-config-airbnb": "^16.1.0",
     "eslint-plugin-import": "^2.12.0",
     "eslint-plugin-jsx-a11y": "^6.0.3",
-    "eslint-plugin-react": "^7.8.2",
-    "jest": "^23.0.1",
+    "eslint-plugin-react": "^7.9.1",
+    "jest": "^23.1.0",
     "prop-types": "^15.6.1",
-    "react": "^16.4.0",
-    "react-dom": "^16.4.0",
-    "react-router": "^4.2.0",
-    "react-router-dom": "^4.2.2",
-    "rollup": "^0.59.4",
+    "react": "^16.4.1",
+    "react-dom": "^16.4.1",
+    "react-router": "^4.3.1",
+    "react-router-dom": "^4.3.1",
+    "rollup": "^0.60.7",
     "rollup-plugin-babel": "^3.0.4",
     "rollup-plugin-commonjs": "^9.1.3",
     "rollup-plugin-node-resolve": "^3.3.0",
-    "typescript": "^2.8.3"
+    "typescript": "^2.9.2"
   },
   "scripts": {
     "prepublishOnly": "npm run build",

rollup.config.js

@@ -13,7 +13,6 @@ const globals = {
 
 const config = {
   input: 'src/index.js',
-  exports: 'named',
   plugins: [
     babel({
       exclude: 'node_modules/**',

src/index.js

@@ -7,7 +7,7 @@ const NO_BREADCRUMB = 'NO_BREADCRUMB';
 
 // renders and returns the breadcrumb complete with `match`, `location`, and `key` props
 const render = ({ breadcrumb, match, location }) => {
-  const componentProps = { match, location, key: match.path };
+  const componentProps = { match, location, key: match.url };
   if (typeof breadcrumb === 'function') {
     return createElement(breadcrumb, componentProps);
   }