View a sheet twice with same url

Hi

We have tried to integrate Zoho sheet viewer into our application. The scenario is that users can upload different types of files e.g tsv and we have different "viewers" for the files, we use Zoho for spreadsheets files. One problem, or I don´t know if it´s possible is that when we generate a link, we embed it into our application using a iframe and this works fine. The problem comes when the user have done other things in the application, in the same user session, and wants to view the file agin, then the url previously generated is not valid anymore. It is possible to get this scenario to work? Can one set a time to live on the document or something else?

cheers, Håkon