UIWebView crashes on iPhone 6 Plus for large HTML (no control over html content)

I am using UIWebView to navigate to different sites in my application. App works fine on iPhone 5S but crashes on large HTML for iPhone 6 Plus

I am creating a UIWebView in a ViewController and adding it to the view using self.view.addSubView(UIWebView object)

The constraints I have are only the constraints between the navbar and UIWebView. In other words, there are no vertical restrictions.

When I load big html (Wikpedia page about Tom Brady), UIWebView crashes. This does not happen on the iPhone 5S.

Is there a known issue with UIWebView on iPhone 6 Plus? Is there a job?