Example URL:
http://wallstreetjournal.com

Steps to reproduce the problem:
1. go to a page with an ad wall
2. don't hit stop while loading
3. see content you were reading disappear 

What is the expected behavior?
That I can keep reading, or easily rewind to where I can read

What went wrong?
A website should not be able to show you something, and then take it away or change it in a way that provents MY browser from returning to the original state.  This is a BUG in all modern browsers. 

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? No 

Does this work in other browsers? No
 any that feature Javascript 

Chrome version: 69.0.3497.100  Channel: stable
OS Version: 7.0
Flash Version: 7.0

I own my browser and anything sent to it.  My browser should work for me and make it easy for me to view any data it received.