Question

I want to redirect after a successful ajax request (which I know how to do) but I want to pass along the returned data which will be used to load an iframe on the page I just redirected to.

What’s the best way to pass such data along and use it to open and populate an iframe in the page I just redirected to?

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EDIT:
I am passing a GET variable but am having to use the following to access it for use in my iframe src attribute:

function $_GET(q,s) {
        s = (s) ? s : window.location.search;
        var re = new RegExp('&'+q+'=([^&]*)','i');
        return (s=s.replace(/^\?/,'&').match(re)) ? s=s[1] : s='';
    }

var d = $_GET('thedata');

I assume there isn’t really a more straightforward way to access the GET vars?

Answer 1

If it’s not too much data, you could pass it as a get parameter in the redirect:

document.location = "/otherpage?somevar=" + urlescape(var)

Remember that urls are limited to 1024 chars, and that special chars must be escaped.

If it is beyond that limit your best move is to use server side sessions. You will use a database on the server to store the necessary information and pass a unique identifier in the url, or as a cookie on the users computer. When the new page loads, it can then pull the information out of the database using the identifier. Sessions are supported in virtually every web framework out of the box.

Another alternative may be to place the data as a hidden attribute in a form which uses the post method (to get around the 1024 char limit), and simulating a submission of the form in javascript to accomplish the redirect, including the data.