Will be nice to clear auth credentials. For example, I'm using a proxy that accepts options via username:

```
proxy.com:8080
user: wiliam_country_US
```

So, if I want to change the peer node, I change my username:

```
proxy.com:8080
user: wiliam_country_GB
```

But, I'm not changing the proxy, so electron has valid credentials and is not going to trigger `login` event.

I'm searching the way to clean auth settings so electron asks them again.
atom/browser/api/atom_api_url_request.cc
scoped_refptr<const net::IOBufferWithSize> buffer) {
  if (request_state_.Canceled() || request_state_.Closed() ||
      request_state_.Failed() || response_state_.Failed()) {
    
    
    return;
  }
  if (!buffer || !buffer->data() || !buffer->size()) {
    return;
  }
  Emit("data", buffer);
}
void URLRequest::OnResponseCompleted() {
  if (request_state_.Canceled() || request_state_.Closed() ||
      request_state_.Failed() || response_state_.Failed()) {
    
    
    return;
  }
  response_state_.SetFlag(ResponseStateFlags::kEnded);
  Emit("end");
  Close();
}
void URLRequest::OnError(const std::string& error, bool isRequestError) {