--- deflate.conf.orig	2014-08-16 21:38:26.000000000 +0200
+++ deflate.conf	2016-04-28 03:30:27.000000000 +0200
@@ -6,6 +6,7 @@
 		# everything else may cause problems with MSIE 6
 		AddOutputFilterByType DEFLATE text/css
 		AddOutputFilterByType DEFLATE application/x-javascript application/javascript application/ecmascript
+		AddOutputFilterByType DEFLATE application/json
 		AddOutputFilterByType DEFLATE application/rss+xml
 		AddOutputFilterByType DEFLATE application/xml
 	</IfModule>