How to redirect a link to a hash value URL using JS?

Question

Let's say a user goes from greatsite.com/uno#argument to coolsite.com/dos. After some interaction on the second page, I need to send it back to my referrer using Javascript:

window.location = document.referrer; 

The problem with the launch is that document.referrer loses hash values. The user is redirected to the .com / uno website without #argument. The page does not work because its javascript depends on this argument.

Answer 1

what about the story?

 if (history.back() === undefined) location.replace(document.referrer); 

Answer 2

So link to dos, but add the current hash of the document. So, the dos # argument.

Then connect to the referrer by adding the current hash tag to the referrer.

In other words, carry the hash tag with you through the pages.

Answer 3

try it

 window.history.go(-1) 

but firefox may ask the user whether to prevent