From f165b8265219e27c2378f89485d7953a138e590e Mon Sep 17 00:00:00 2001
From: Nathan Reese <reese.nathan@gmail.com>
Date: Mon, 8 Apr 2019 13:59:02 -0600
Subject: [PATCH] allow URLs with no hash in chrome locationChangeStart
 callback

---
 src/legacy/ui/public/chrome/directives/kbn_chrome.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/legacy/ui/public/chrome/directives/kbn_chrome.js b/src/legacy/ui/public/chrome/directives/kbn_chrome.js
index 7d7f703ccc8805..464b852c3981dd 100644
--- a/src/legacy/ui/public/chrome/directives/kbn_chrome.js
+++ b/src/legacy/ui/public/chrome/directives/kbn_chrome.js
@@ -77,7 +77,11 @@ export function kbnChromeProvider(chrome, internals) {
           $rootScope.$on('$locationChangeStart', (e, newUrl) => {
             // This handler fixes issue #31238 where browser back navigation
             // fails due to angular 1.6 parsing url encoded params wrong.
-            const absUrlHash = url.parse($location.absUrl()).hash.slice(1);
+            const absUrl = url.parse($location.absUrl());
+            if (!absUrl.hash) {
+              return;
+            }
+            const absUrlHash = absUrl.hash.slice(1);
             const decodedAbsUrlHash = decodeURIComponent(absUrlHash);
             const hash = url.parse(newUrl).hash.slice(1);
             const decodedHash = decodeURIComponent(hash);