From cdf9b509101351e4bddefbc2412f896a922a684b Mon Sep 17 00:00:00 2001
From: Eric Lippmann <eric.lippmann@netways.de>
Date: Tue, 16 Feb 2016 00:25:35 +0100
Subject: [PATCH] doc: Mention PageSpeed module incompatibility

refs #10102
---
 doc/installation.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/doc/installation.md b/doc/installation.md
index 57abe0dd2..27a05ce10 100644
--- a/doc/installation.md
+++ b/doc/installation.md
@@ -16,6 +16,21 @@ thoroughly.
 * Icinga 1.x w/ Livestatus or IDO; Icinga 2.x w/ Livestatus or IDO feature enabled
 * MySQL or PostgreSQL PHP libraries when using IDO
 
+### <a id="pagespeed-incompatibility"></a> PageSpeed Module Incompatibility
+
+It seems that Web 2 is not compatible with the PageSpeed module. Please disable the PageSpeed module using one of the
+following methods.
+
+**Apache**:
+````
+ModPagespeedDisallow "*/icingaweb2/*"
+````
+
+**Nginx**:
+````
+pagespeed Disallow "*/icingaweb2/*";
+````
+
 ## <a id="installing-from-package"></a> Installing Icinga Web 2 from Package
 
 Below is a list of official package repositories for installing Icinga Web 2 for various operating systems.