Old tabs causing duplicate POST requests

Description of the issue:
I have not been able to reproduce this yet, I am kind of asking if it is possible that this has happened.

I think I had a tab open that I had opened with a post request from a form. I hadn’t clicked on this tab in a long time, there were likely system restarts in between, but at some point later I opened this tab and I am wondering if it is possible that it sent the post request again.

Steps to Reproduce (add as many as necessary): 1. 2. 3.
This is how I have been trying to test it at least.
I started up an expressjs project and added 2 endpoints, one that sends a form and another that receives the post request and logs it.
Go ahead make the request and keep the tab open.
wait??
Open it again and see if it caused a request.

Actual Result (gifs and screenshots are welcome!):
¯_(ツ)_/¯

Expected result:
¯_(ツ)_/¯

Operating System and Brave Version(See the About Brave page in the main menu):
Honestly, I don’t know if I was on Arch Linux or Windows at the time, and I only realized today that this may have happened, when it would have happened as around the start of June.