* [x] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [x] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [x] I have searched the issue tracker for an issue that matches the one I want to file, without success.

### Issue Details

* **Electron Version:**
  * 7.0.0-beta.7
* **Operating System:**
  * Windows 10
* **Last Known Working Electron version:**
  * 6

### Expected Behavior
Cookies are received

### Actual Behavior
response.headers["set-cookie"] never contains cookies

### To Reproduce
Do a request using the net module as described here: https://electronjs.org/docs/api/net
to any site that will return cookies.

shell/browser/api/atom_api_url_loader.cc
pinned_wrapper_.Reset(isolate(), GetWrapper());
}
void SimpleURLLoaderWrapper::PinBodyGetter(v8::Local<v8::Value> body_getter) {
  pinned_chunk_pipe_getter_.Reset(isolate(), body_getter);
}
SimpleURLLoaderWrapper::~SimpleURLLoaderWrapper() {
  GetAllRequests().Remove(id_);
}
SimpleURLLoaderWrapper* SimpleURLLoaderWrapper::FromID(uint32_t id) {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  return GetAllRequests().Lookup(id);
}
void SimpleURLLoaderWrapper::OnAuthRequired(