To Reproduce:
1. Open Fiddler.
2. Open up a web browser and go to any page that is reasonably large (e.g. https://www.aol.com/)
3. In Fiddler, select the request (click Decode if necessary), then go to the "Raw" tab, scroll down, and click View full response.
Expected result: A decently large window opens with the response
What happens: The window only shows 1 line at a time. See attachment.