From 7bd1407803ba8fbec8283f12a27128b8bd4bde75 Mon Sep 17 00:00:00 2001
From: StringEpsilon <StringEpsilon@users.noreply.github.com>
Date: Sat, 20 Apr 2019 20:30:14 +0200
Subject: [PATCH] matchPath: Fixed exception thrown if `path` is undefined
 (#6715)

* matchPath: Fixed exception thrown if `path` is undefined

* Match the line below it
---
 packages/react-router/modules/__tests__/matchPath-test.js | 8 ++++++++
 packages/react-router/modules/matchPath.js                | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/packages/react-router/modules/__tests__/matchPath-test.js b/packages/react-router/modules/__tests__/matchPath-test.js
index 7c91d2c3fd..4718690ac4 100644
--- a/packages/react-router/modules/__tests__/matchPath-test.js
+++ b/packages/react-router/modules/__tests__/matchPath-test.js
@@ -1,6 +1,14 @@
 import { matchPath } from "react-router";
 
 describe("matchPath", () => {
+  describe("without path property on params", () => {
+    it("doesn't throw an exception", () => {
+      expect(() => {
+        matchPath("/milkyway/eridani", { hash: "foo" });
+      }).not.toThrow();
+    });
+  });
+
   describe('with path="/"', () => {
     it('returns correct url at "/"', () => {
       const path = "/";
diff --git a/packages/react-router/modules/matchPath.js b/packages/react-router/modules/matchPath.js
index b0be891a2d..773c238ae9 100644
--- a/packages/react-router/modules/matchPath.js
+++ b/packages/react-router/modules/matchPath.js
@@ -33,7 +33,9 @@ function matchPath(pathname, options = {}) {
   const paths = [].concat(path);
 
   return paths.reduce((matched, path) => {
+    if (!path) return null;
     if (matched) return matched;
+
     const { regexp, keys } = compilePath(path, {
       end: exact,
       strict,