From 327fabb663e213ee46db61a2a2ded561e03ec923 Mon Sep 17 00:00:00 2001
From: Clark Du <clark.duxin@gmail.com>
Date: Mon, 30 Oct 2017 12:15:25 +0800
Subject: [PATCH] fix: originalPositionFor return null when using babel-loader

---
 lib/core/renderer.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/core/renderer.js b/lib/core/renderer.js
index f3be97e5bb..821512c7cd 100644
--- a/lib/core/renderer.js
+++ b/lib/core/renderer.js
@@ -413,7 +413,8 @@ export default class Renderer extends Tapable {
       // Try to find original position
       const { line, column, name, source } = smc.originalPositionFor({
         line: frame.getLineNumber() || 0,
-        column: frame.getColumnNumber() || 0
+        column: frame.getColumnNumber() || 0,
+        bias: SourceMapConsumer.LEAST_UPPER_BOUND
       })
       if (line) {
         frame.lineNumber = line