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### Issue Details

* **Electron Version:**
  * 8.0.0-beta.5
* **Operating System:**
  * Windows 10
* **Last Known Working Electron version:**
  * 8.0.0-beta,4

### Expected Behavior
http://google.com should load without any crash

### Actual Behavior
Going to http://google.com works for the first time. However, when going to the same URL after the cache has been saved in `userData`, it crashes with `3221225477` exit code. The strange thing is that when going to https://google.com, it works perfectly.

### To Reproduce
(I couldn't use Fiddle, since it saves the `userData` temporarily)
https://github.com/sentialx/electron-quick-start/tree/google-crash
Branch `google-crash`

shell/browser/net/proxying_url_loader_factory.cc
pending_follow_redirect_params_->removed_headers.end(),
        removed_headers.begin(), removed_headers.end());
    for (auto& set_header : set_headers) {
      std::string header_value;
      if (request_.headers.GetHeader(set_header, &header_value)) {
        pending_follow_redirect_params_->modified_headers.SetHeader(
            set_header, header_value);
      } else {
        NOTREACHED();
      }
    }
    if (target_loader_.is_bound()) {
      target_loader_->FollowRedirect(
          pending_follow_redirect_params_->removed_headers,
          pending_follow_redirect_params_->modified_headers,
          pending_follow_redirect_params_->new_url);
    }
    pending_follow_redirect_params_.reset();
  }
  if (proxied_client_receiver_.is_bound())
    proxied_client_receiver_.Resume();
  
  factory_->web_request_api()->OnSendHeaders(&info_.value(), request_,
                                             request_.headers);
  if (!current_request_uses_header_client_)
    ContinueToStartRequest(net::OK);
}
void ProxyingURLLoaderFactory::InProgressRequest::ContinueToStartRequest(
    int error_code) {
  if (error_code != net::OK) {