Hey Quick Cal - we have not found the cause yet, and three details from you would help us track it down. It might be coming from the ad side, which makes it ours to chase.
The next time the page goes white, could you post:
1. Which browser you are using (Chrome, Safari, Edge and so on)
2. Whether you are on a phone, tablet or computer, and which kind
3. Roughly what time it happened, and which thread you were on
Thanks for flagging it. Garry's tip is a good one in the meantime: hold down the back arrow and you can pick the page you want from the list.
- Priya, Advally