passing a variable with window.opener javascript

Question

In the first page I have

window.tmpstr = 'aaaaaa';
window.open ('second.php','_self',false);

in second.php

alert(window.opener.tmpstr)

This alerts 'undefined'. when I change '_self' to '_blank' it works. How can I pass the variable when I want the new window to open in the same window.

... why aren't you either sending the data to the second page via the server OR loading the second page async so that you don't refresh the entire document? — Evan Davis
– Evan Davis, Commented Jan 3, 2013 at 21:40
This is a mobile site and I'm trying to limit the calls to the server. I get the data from the server on the first page and its huge. — A H
– A H, Commented Jan 3, 2013 at 21:42
Theres three pages that all need to share the same json string. — A H
– A H, Commented Jan 3, 2013 at 21:46

Cyril N. · Accepted Answer · 2013-01-03 21:41:05Z

1

You can't, not like that. By calling window.open using _self, you simply redirect the page to the second.php url.

Options you can use are :

Adding it as a parameter using the hash tag (second.php#tmpstr=aaaaaa
Using cookies (there is a nice jQuery cookie plugin)
Moving your whole page into a iFrame (not recommended) and redirecting only the main frame.

answered Jan 3, 2013 at 21:41

Cyril N.

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