- Electron version: 0.37.2
- Operating system: OS X (El Capitan 10.11.3)

If you use `debugger` it will not pause the execution of the program. If I downgrade to electron version `0.36.x`, then it works.

Same happens when you set up breakpoints in the Developer Tools.

![Debugger issue](http://i.imgur.com/jps3VVH.gif)

atom/browser/api/atom_api_web_contents.cc
v8::Isolate* isolate, const mate::Dictionary& options) {
  auto handle = mate::CreateHandle(isolate, new WebContents(isolate, options));
  g_wrap_web_contents.Run(handle.ToV8());
  return handle;
}
void ClearWrapWebContents() {
  g_wrap_web_contents.Reset();
}
void SetWrapWebContents(const WrapWebContentsCallback& callback) {
  g_wrap_web_contents = callback;
  
  atom::AtomBrowserMainParts::Get()->RegisterDestructionCallback(
      base::Bind(ClearWrapWebContents));
}
}  
}  
namespace {
void Initialize(v8::Local<v8::Object> exports, v8::Local<v8::Value> unused,
                v8::Local<v8::Context> context, void* priv) {
  v8::Isolate* isolate = context->GetIsolate();
  mate::Dictionary dict(isolate, exports);
  dict.SetMethod("create", &atom::api::WebContents::Create);
  dict.SetMethod("_setWrapWebContents", &atom::api::SetWrapWebContents);
}
}  
NODE_MODULE_CONTEXT_AWARE_BUILTIN(atom_browser_web_contents, Initialize)