From 5802e2e334770d0c2e879b4e42acb63348573d92 Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Thu, 5 Nov 2015 11:04:14 +0000
Subject: [PATCH] add strict option to bable-plugin-transform-strict-mode

---
 packages/babel-plugin-transform-strict-mode/src/index.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/babel-plugin-transform-strict-mode/src/index.js b/packages/babel-plugin-transform-strict-mode/src/index.js
index 1c694818cb..452f5c9a6b 100644
--- a/packages/babel-plugin-transform-strict-mode/src/index.js
+++ b/packages/babel-plugin-transform-strict-mode/src/index.js
@@ -3,9 +3,11 @@ import * as t from "babel-types";
 export default function () {
   return {
     visitor: {
-      Program(path) {
-        let { node } = path;
+      Program(path, state) {
+        if (state.opts.strict === false) return;
         
+        let { node } = path;
+
         for (let directive of (node.directives: Array<Object>)) {
           if (directive.value.value === "use strict") return;
         }