Refreshing Webpage

Question

I want an HTML meta or PHP or some JavaScript code so that every time history.go(-1) takes me to previous page, the page refreshes itself. Because only the loaded content is shown while going back to a page through history. Thanks in advance :)

Answer 1

html
<meta http-equiv="refresh" content="30">

js
location.reload()

Answer 2

use of js

Answer 3

but this will update it every 30s if I'm not wrong. I need it only once