From befd81d0c238125b8b82dc8af69b58a1e639a6c4 Mon Sep 17 00:00:00 2001
From: Daniel Hensby <git@hens.by>
Date: Tue, 12 Jun 2018 17:59:56 +0100
Subject: [PATCH] FIX Bug with forms being cached

---
 src/Forms/Form.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Forms/Form.php b/src/Forms/Form.php
index 84d6574a4..b2d921a34 100644
--- a/src/Forms/Form.php
+++ b/src/Forms/Form.php
@@ -7,6 +7,7 @@ use SilverStripe\Control\Controller;
 use SilverStripe\Control\HasRequestHandler;
 use SilverStripe\Control\HTTP;
 use SilverStripe\Control\HTTPRequest;
+use SilverStripe\Control\Middleware\HTTPCacheControlMiddleware;
 use SilverStripe\Control\NullHTTPRequest;
 use SilverStripe\Control\RequestHandler;
 use SilverStripe\Control\Session;
@@ -884,7 +885,7 @@ class Form extends ViewableData implements HasRequestHandler
 
         // If we need to disable cache, do it
         if ($needsCacheDisabled) {
-            HTTP::set_cache_age(0);
+            HTTPCacheControlMiddleware::singleton()->disableCache();
         }
 
         $attrs = $this->getAttributes();