From f05bc8293f09b828eb9703cd6cd70e39a6cb4396 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Oskar=20Segersv=C3=A4rd?= <victorystick@gmail.com>
Date: Tue, 29 Dec 2015 16:16:42 +0100
Subject: [PATCH] Make failing test pass

---
 src/utils/transform.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/utils/transform.js b/src/utils/transform.js
index 761a217..5ddde28 100644
--- a/src/utils/transform.js
+++ b/src/utils/transform.js
@@ -25,6 +25,10 @@ export default function transform ( source, id, transformers ) {
 						map: null
 					};
 				}
+				// `result.map` can only be a string if `result` isn't
+				else if ( typeof result.map === 'string' ) {
+					result.map = JSON.parse( result.map );
+				}
 
 				sourceMapChain.push( result.map );
 				ast = result.ast;