* [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
v8::Global<v8::Function> body_func_;
};
gin::WrapperInfo JSChunkedDataPipeGetter::kWrapperInfo = {
    gin::kEmbedderNativeGin};
namespace electron {
namespace api {
namespace {
const net::NetworkTrafficAnnotationTag kTrafficAnnotation =
    net::DefineNetworkTrafficAnnotation("electron_net_module", R"(
        semantics {
          sender: "Electron Net module"
          description:
            "Issue HTTP/HTTPS requests using Chromium's native networking "
            "library."
          trigger: "Using the Net module"
          data: "Anything the user wants to send."
          destination: OTHER
        }
        policy {
          cookies_allowed: YES
          cookies_store: "user"
          setting: "This feature cannot be disabled."
        })");
base::IDMap<SimpleURLLoaderWrapper*>& GetAllRequests() {
  static base::NoDestructor<base::IDMap<SimpleURLLoaderWrapper*>>
      s_all_requests;
  return *s_all_requests;
}
}  
SimpleURLLoaderWrapper::SimpleURLLoaderWrapper(