Go back to previous page with modifed URL

Question

Using Javascript, I'm attempting to setup a redirect that will go back to the previous page with a newly appended value added to the url.

For example, if I landed here:

http://google.com/

Then navigated to:

http://google.com/redirect

I would expect to ultimately end up at:

http://google.com/?redirect=successful

Javascript to head back 1 page:

<script>
    window.history.go(-1);
</script>

This works, but I'm not sure how I'd go about appending the query string.

Answer 1

You're probably looking to go to the referrer having modified it a bit.

Then do:

location.href = document.referrer + "?redirect=successful"

(if I've got what you were looking for)

Answer 2

you can write like

<script>
   var a =  window.history.go(-1)+'your query string';
location.href = a;
</script>

Answer 3

You may want to look up the replaceState() method of the History API.

There is a simple example of its use at: http://blog.scoutapp.com/articles/2010/12/07/manipulating-browser-history-with-javascript-pushstate-replacestate

It is also discussed on StackOverflow here: history.replaceState() example?