From ce302f2142c946aaf40db4abaec7c7710f2e4f95 Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Wed, 1 Sep 2021 16:30:38 +0530
Subject: [PATCH] warn that IE isn't supported

---
 www/common/boot2.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/www/common/boot2.js b/www/common/boot2.js
index ada5b794c..d143da87d 100644
--- a/www/common/boot2.js
+++ b/www/common/boot2.js
@@ -34,6 +34,7 @@ try {
 define([
     '/common/requireconfig.js'
 ], function (RequireConfig) {
+
     require.config(RequireConfig());
 
     // most of CryptPad breaks if you don't support isArray
@@ -91,4 +92,10 @@ define([
     } catch (e) { console.error(e); failStore(); }
 
     require([document.querySelector('script[data-bootload]').getAttribute('data-bootload')]);
+    if (typeof(Promise) !== 'function') {
+        setTimeout(function () {
+            var s = "Internet Explorer is not supported anymore, including by Microsoft.\n\nMost of CryptPad's collaborative functionality requires a modern browser to work.\n\nWe recommend Mozilla Firefox.";
+            window.alert(s);
+        });
+    }
 });