From b6d173e664597c0ffe7419c076e15276d719dca0 Mon Sep 17 00:00:00 2001
From: Paul Van Eck <pvaneck@us.ibm.com>
Date: Sat, 10 Oct 2015 11:40:44 -0700
Subject: [PATCH] Force no caching for Angular $http requests

There were issues with IE caching angular $http get requests, so
this patch will ensure no caching.

Change-Id: If932f307f8eeb636a99d2296b0053030057182f9
Closes-Bug: #1504818
---
 refstack-ui/app/app.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/refstack-ui/app/app.js b/refstack-ui/app/app.js
index 471f4517..359825cc 100644
--- a/refstack-ui/app/app.js
+++ b/refstack-ui/app/app.js
@@ -76,6 +76,24 @@
             });
     }
 
+    angular
+        .module('refstackApp')
+        .config(disableHttpCache);
+
+    disableHttpCache.$inject = ['$httpProvider'];
+
+    /**
+     * Disable caching in $http requests. This is primarily for IE, as it
+     * tends to cache Angular IE requests.
+     */
+    function disableHttpCache($httpProvider) {
+        if (!$httpProvider.defaults.headers.get) {
+            $httpProvider.defaults.headers.get = {};
+        }
+        $httpProvider.defaults.headers.get['Cache-Control'] = 'no-cache';
+        $httpProvider.defaults.headers.get.Pragma = 'no-cache';
+    }
+
     angular
         .module('refstackApp')
         .run(setup);