From 59e3d79c36caf97bf28a7bb5ac5e4eb6c07feb39 Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@icinga.com>
Date: Thu, 11 Nov 2021 16:16:37 +0100
Subject: [PATCH] configuration.php: Don't load `migrate.js` for IE users

---
 configuration.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/configuration.php b/configuration.php
index 1c172207..e5bd3108 100644
--- a/configuration.php
+++ b/configuration.php
@@ -570,6 +570,10 @@ namespace Icinga\Module\Icingadb {
     }
 
     $this->provideJsFile('action-list.js');
-    $this->provideJsFile('migrate.js');
     $this->provideJsFile('loadmore.js');
+
+    $forIe11 = (bool) preg_match('/Trident\/7.0;.*rv:11/', $_SERVER['HTTP_USER_AGENT']);
+    if (! $forIe11) {
+        $this->provideJsFile('migrate.js');
+    }
 }