From d1f580a96109fa5d17596fb16ddb94c7a78210af Mon Sep 17 00:00:00 2001
From: Rich Harris <richard.a.harris@gmail.com>
Date: Mon, 12 Dec 2016 15:55:53 -0500
Subject: [PATCH] Merge pull request #99 from AMcBain/master

Ignore Babel 'only' options property for preflight checks.
---
 packages/rollup-plugin-babel/src/preflightCheck.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/rollup-plugin-babel/src/preflightCheck.js b/packages/rollup-plugin-babel/src/preflightCheck.js
index 2a0413cd6..414efe238 100644
--- a/packages/rollup-plugin-babel/src/preflightCheck.js
+++ b/packages/rollup-plugin-babel/src/preflightCheck.js
@@ -11,6 +11,7 @@ export default function preflightCheck ( options, dir ) {
 		let helpers;
 
 		options = assign( {}, options );
+		delete options.only;
 		options.filename = join( dir, 'x.js' );
 
 		options.plugins = options.plugins ? options.plugins.concat( classes ) : [ classes ];