Show upgrade warning if using a really old browser (#1046)

PostHog · Jun 18, 2020 · e4a9acc · e4a9acc
1 parent 95dc359
commit e4a9acc
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/frontend/src/index.html b/frontend/src/index.html
@@ -17,8 +17,15 @@
         <script id="sentry-snippet">location.host.indexOf('127.0.0.1') == -1 && Sentry.init({ dsn: '{{sentry_dsn}}' });</script>
     {% endif %}
   </head>
-
   <body>
+    <script>
+        if (typeof Object.entries === 'undefined') {
+            let div = document.createElement("div");
+            div.style.color='#fef6f6'; div.style.background='#920c0c'; div.style.padding='5px 10px';
+            div.innerHTML = "You are using a really old browser. Please upgrade to fully enjoy PostHog!"
+            document.body.prepend(div);
+        }
+    </script>
     <div id="root"></div>
   </body>
 </html>