server: prevent caching

1 files changed, 9 insertions, 0 deletions

diff --git a/server.lua b/server.lua
index 17a93c3..5a3f081 100644
--- a/server.lua
+++ b/server.lua
@@ -7,6 +7,7 @@ local aconf = require('aconf')
 local mbin = aconf.model.binary
 local mnode = aconf.model.node
 local isinstance = aconf.object.isinstance
+local update = require('aconf.util').update
 
 local json = require('cjson')
 local posix = require('posix')
@@ -24,6 +25,14 @@ local sessions = {}
 return function(env)
    local function wrap(code, headers, res, encode)
       if not headers then headers = {} end
+      update(
+	 headers,
+	 {
+	    ['Cache-Control']='no-cache, no-store, must-revalidate',
+	    Pragma='no-cache',
+	    Expires='0'
+	 }
+      )
 
       if res then
 	 local ctype