You click a link on reddit and start reading the linked article. Suddenly you are redirected to an ad saying that your ANDROID has a virus and you have to install their addon to remove it. You click 'back' and it automatically sends you right back to the spam.
What's happening?
There's an ad on the page had an iframe that contained code to redirect your browser to their spam. That page contains another redirect to a page, which itself has a redirect. If you try to navigate back, you just load the previous page and the redirect sends you right back.
The Fix
Enter this link in your browser:
chrome://flags/#enable-framebusting-needs-sameorigin-or-usergesture
On mobile it's easier to enter:
chrome://flags and enter frame in the search box
Once you find the option, select 'enable' and your browser will block ad iframes from being allowed to do request a redirect.
