From f2dbe40a512791a521072c7d74f7533dcbf2ad8e Mon Sep 17 00:00:00 2001
From: Maros Hluska <mhluska@gmail.com>
Date: Wed, 25 Nov 2015 17:22:47 -0500
Subject: [PATCH] Add expire flag for transition cache

---
 lib/assets/javascripts/turbolinks.coffee | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/assets/javascripts/turbolinks.coffee b/lib/assets/javascripts/turbolinks.coffee
index 85d68db1..ad95b4a8 100644
--- a/lib/assets/javascripts/turbolinks.coffee
+++ b/lib/assets/javascripts/turbolinks.coffee
@@ -1,6 +1,7 @@
 pageCache               = {}
 cacheSize               = 10
 transitionCacheEnabled  = false
+transitionCacheExpire   = true
 requestCachingEnabled   = true
 progressBar             = null
 progressBarDelay        = 400
@@ -52,14 +53,17 @@ fetch = (url, options = {}) ->
   else
     options.scroll ?= false if isPartialReplacement(options) and !url.hash
 
-  fetchReplacement url, options
+  if transitionCacheExpire or not cachedPage?
+    fetchReplacement url, options
 
 transitionCacheFor = (url) ->
   return if url is currentState.url
   cachedPage = pageCache[url]
   cachedPage if cachedPage and !cachedPage.transitionCacheDisabled
 
-enableTransitionCache = (enable = true) ->
+enableTransitionCache = (enable = true, options = {}) ->
+  options.expire ?= true
+  transitionCacheExpire = options.expire
   transitionCacheEnabled = enable
 
 disableRequestCaching = (disable = true) ->