From 254edffa9ca4deebef189c10b7846adca72024db Mon Sep 17 00:00:00 2001
From: John McLear <john@mclear.co.uk>
Date: Fri, 24 Apr 2015 14:17:49 +0100
Subject: [PATCH] fixes #2547

---
 src/node/hooks/express.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/node/hooks/express.js b/src/node/hooks/express.js
index 1752f5d0..17910e4b 100644
--- a/src/node/hooks/express.js
+++ b/src/node/hooks/express.js
@@ -69,6 +69,9 @@ exports.restartServer = function () {
       res.header("Strict-Transport-Security", "max-age=31536000; includeSubDomains");
     }
 
+    // Stop IE going into compatability mode
+    // https://github.com/ether/etherpad-lite/issues/2547
+    res.header("X-UA-Compatible", "IE=Edge,chrome=1");
     res.header("Server", serverName);
     next();
   });