order confirmation page request by javascript

[sacco66]

hello

i'am about to develop a payment module, at the end of a positive procedure i have to redirect to order-confirmation page with javascript.

for example

window.location="index.php?controller=order-confirmation&id_cart=1&id_module=2&id_order=3&key=aaabbbbccc123"

is it safe to expose secure key in this way or is better to use other way like a POST request or what ?

thx