Chromium Code Reviews| Index: src/debug/mirrors.js | 
| diff --git a/src/debug/mirrors.js b/src/debug/mirrors.js | 
| index 1ccb001711876ff45372baf9b4d6a1d936baca37..84ea9abb0e06e5d9fca978d54a903358b290688a 100644 | 
| --- a/src/debug/mirrors.js | 
| +++ b/src/debug/mirrors.js | 
| @@ -2342,6 +2342,7 @@ ScriptMirror.prototype.source = function() { | 
| ScriptMirror.prototype.setSource = function(source) { | 
| + if (!IS_STRING(source)) throw MakeError(kDebugger, "Source is not a string"); | 
| %DebugSetScriptSource(this.script_, source); | 
| }; |