From 2cbc925ac0a78ab4694269135a40e45f4877632c Mon Sep 17 00:00:00 2001
From: Andrey <andrey-git@users.noreply.github.com>
Date: Sat, 18 Nov 2017 11:09:04 +0200
Subject: [PATCH] Documentation for es5 / untranspiled JS  (#3948)

* Documentation for es5/es6 code

* Update frontend.markdown

* :pencil2: Small typo corrections
---
 source/_components/frontend.markdown | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source/_components/frontend.markdown b/source/_components/frontend.markdown
index ee89044b2ed..40274f80623 100644
--- a/source/_components/frontend.markdown
+++ b/source/_components/frontend.markdown
@@ -19,6 +19,11 @@ frontend:
 ```
 
 {% configuration %}
+  javascript_version:
+    description: "Version of the JavaScript to serve to clients. Options: `es5` - transpiled so old browsers understand it.  `latest` - not transpiled, so will work on recent browsers only. `auto` - select a version according to the browser user-agent. The value in the config can be overiden by putting `es5` or `latest` in the URL. For example `http://localhost:8123/states?es5` "
+    required: false
+    type: string
+    default: es5
   themes:
     description: Allow to define different themes. See below for further details.
     required: false