- 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
content::SavePageType* out) {
    std::string save_type;
    if (!ConvertFromV8(isolate, val, &save_type))
      return false;
    save_type = base::ToLowerASCII(save_type);
    if (save_type == "htmlonly") {
      *out = content::SAVE_PAGE_TYPE_AS_ONLY_HTML;
    } else if (save_type == "htmlcomplete") {
      *out = content::SAVE_PAGE_TYPE_AS_COMPLETE_HTML;
    } else if (save_type == "mhtml") {
      *out = content::SAVE_PAGE_TYPE_AS_MHTML;
    } else {
      return false;
    }
    return true;
  }
};
}  
namespace atom {
namespace api {
namespace {
using WrapWebContentsCallback = base::Callback<void(v8::Local<v8::Value>)>;
WrapWebContentsCallback g_wrap_web_contents;
content::ServiceWorkerContext* GetServiceWorkerContext(