From 6d2d80c1a0ad869e733c0b9eaa8a0fb0d56ec0b8 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <me@chillu.com>
Date: Wed, 18 Jul 2018 22:11:03 +1200
Subject: [PATCH] Disable HTTP caches on preview links

Using new core API, see https://github.com/silverstripe/silverstripe-framework/pull/8086
---
 code/controllers/ShareDraftController.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/code/controllers/ShareDraftController.php b/code/controllers/ShareDraftController.php
index 50ed322..c2bcc63 100644
--- a/code/controllers/ShareDraftController.php
+++ b/code/controllers/ShareDraftController.php
@@ -32,6 +32,9 @@ class ShareDraftController extends Controller
      */
     public function preview(SS_HTTPRequest $request)
     {
+        // Ensure this URL doesn't get picked up by HTTP caches
+        HTTPCacheControl::singleton()->disableCache();
+
         $key = $request->param('Key');
         $token = $request->param('Token');