gajus
diff --git a/‎.babelrc
Lines changed: 2 additions & 1 deletion b/‎.babelrc
Lines changed: 2 additions & 1 deletion
diff --git a/‎README.md
Lines changed: 8 additions & 1 deletion b/‎README.md
Lines changed: 8 additions & 1 deletion
@@ -12,7 +12,8 @@
           "browsers": [
             "last 2 versions"
           ]
-        }
+        },
+        "useBuiltIns": true
       }
     ]
   ]
 
@@ -6,7 +6,8 @@
 [![Twitter Follow](https://img.shields.io/twitter/follow/kuizinas.svg?style=social&label=Follow)](https://twitter.com/kuizinas)
 
 * [Usage](#usage)
-    * [Events](#events)
+  * [Events](#events)
+* [Polyfills](#polyfills)
 * [Examples](#examples)
 * [Debugging](#debugging)
 * [Download](#download)
@@ -104,6 +105,12 @@ player.off(listener);
 
 ```
 
+## Polyfills
+
+Note that the built version does not inline polyfills.
+
+You need to polyfill the environment locally (e.g. using a service such as https://polyfill.io/v2/docs/).
+
 ## Examples
 
 * [Playing a video](./examples/src/playing-video/index.html).
Original file line number	Diff line number	Diff line change
`@@ -12,7 +12,8 @@`
`12`	`12`	`"browsers": [`
`13`	`13`	`"last 2 versions"`
`14`	`14`	`]`
`15`		`- }`
	`15`	`+ },`
	`16`	`+ "useBuiltIns": true`
`16`	`17`	`}`
`17`	`18`	`]`
`18`	`19`	`]`