Views preview crashes when using pager in multi-lingual site.
The view gives out JSON in text area box ( look picture).
This issue can be duplicated for example using Drupals own Multilingual Demo.
Steps to reproduce:
1. Go to Multilingual demo or any multilingual Drupal 8 site that has URL detection method enabled.
2. Go to any view that has data in it ( for example People)
3. Change settings to Use pager.
4. try changing the page in preview.
This only happens when there is a language code in the url, while in the view edit page.