From db08f21da84ae249b3129b4b3805314f9faf9b7e Mon Sep 17 00:00:00 2001
From: Shaunak Kashyap <ycombinator@gmail.com>
Date: Sat, 16 Jul 2016 04:30:05 -0600
Subject: [PATCH] Adding method removeBasePath

---
 src/ui/public/chrome/api/__tests__/nav.js | 13 +++++++++++++
 src/ui/public/chrome/api/nav.js           |  9 +++++++++
 2 files changed, 22 insertions(+)

diff --git a/src/ui/public/chrome/api/__tests__/nav.js b/src/ui/public/chrome/api/__tests__/nav.js
index 735cde4683987..18de366430712 100644
--- a/src/ui/public/chrome/api/__tests__/nav.js
+++ b/src/ui/public/chrome/api/__tests__/nav.js
@@ -45,6 +45,19 @@ describe('chrome nav apis', function () {
     });
   });
 
+  describe('#removeBasePath', () => {
+    it ('returns the given URL as-is when no basepath is set', () => {
+      const basePath = '';
+      const { chrome } = init({ basePath });
+      expect(chrome.removeBasePath('/app/kibana?a=b')).to.be('/app/kibana?a=b');
+    });
+
+    it ('returns the given URL with the basepath stripped out when basepath is set', () => {
+      const { chrome } = init();
+      expect(chrome.removeBasePath(`${basePath}/app/kibana?a=b`)).to.be('/app/kibana?a=b');
+    });
+  });
+
   describe('#getNavLinkById', () => {
     it ('retrieves the correct nav link, given its ID', () => {
       const appUrlStore = new StubBrowserStorage();
diff --git a/src/ui/public/chrome/api/nav.js b/src/ui/public/chrome/api/nav.js
index f78ea3a364162..66e27445c088a 100644
--- a/src/ui/public/chrome/api/nav.js
+++ b/src/ui/public/chrome/api/nav.js
@@ -38,6 +38,15 @@ export default function (chrome, internals) {
     });
   };
 
+  chrome.removeBasePath = function (url) {
+    if (!internals.basePath) {
+      return url;
+    }
+
+    const basePathRegExp = new RegExp(`^${internals.basePath}`);
+    return url.replace(basePathRegExp, '');
+  };
+
   function lastSubUrlKey(link) {
     return `lastSubUrl:${link.url}`;
   }