how can i stop a pop-up that shows up everytime I start the app?

So, I was trying to look something up using the ios browser, but now there's a scam pop-up the won't go away, even when I close the app and restart it. I can't stop the page from loading in time, and I don't want to uninstall and reinstall since I'll lose some custom settings. Is there a way to make the app go to the home page?