- Electron version: 1.2.1
- Operating system: Mac OS X

See also https://github.com/electron/electron/issues/5714

STR:
1. Start a webserver on localhost:port that serves a dummy index.html
2. Register a custom http protocol.
   
   ``` js
   electron.protocol.registerStandardSchemes(['foobar', 'http', 'https']);
   
   app.on('ready', function() {
     electron.protocol.registerHttpProtocol('foobar', (request, callback) => {
       const redirectPath = `http://localhost:port/index.html`;
       callback({ method: request.method, referrer: request.referrer, url: redirectPath });
     }, e => { if (e) { console.log(e); } });
   });
   ```
3. Either through devtools, or via some js in our index.html, have a single line that does `fetch('http://localhost:port/index.html')` or anything else from our server.

Results: as soon as `fetch` is called, the webview becomes black, and the devtools crash if they were open. No other visible error or stdout.

If devtools were open, they show this message: "Devtools was disconnected from the page.
Once page is reloaded, DevTools will automatically reconnect."

atom/renderer/atom_renderer_client.cc
const PreferencesManager* preferences_manager, v8::Isolate* isolate) {
  if (preferences_manager->preferences())
    return mate::ConvertToV8(isolate, *preferences_manager->preferences());
  else
    return v8::Null(isolate);
}
void AddRenderBindings(v8::Isolate* isolate,
                       v8::Local<v8::Object> process,
                       const PreferencesManager* preferences_manager) {
  mate::Dictionary dict(isolate, process);
  dict.SetMethod(
      "getRenderProcessPreferences",
      base::Bind(GetRenderProcessPreferences, preferences_manager));
}
bool IsDevToolsExtension(content::RenderFrame* render_frame) {
  return static_cast<GURL>(render_frame->GetWebFrame()->document().url())
      .SchemeIs("chrome-extension");
}
}  
AtomRendererClient::AtomRendererClient()
    : node_bindings_(NodeBindings::Create(false)),
      atom_bindings_(new AtomBindings) {
}
AtomRendererClient::~AtomRendererClient() {