No print button shown after update to joomla 3.4.8

-- HikaShop version -- : 2.6.0
-- Joomla version -- : 3.4.8
-- PHP version -- : 5.6.16-2+deb.sury.org~trusty+1
-- Browser(s) name and version -- : chrome latest

Hallo.

I upgraded to joomla 3.4.8. In my order i cannot print invoice or shipping doc because the popup is blank. This already happend some upgrades before and you comunicated the solution but with different version.

Could you please give advice.

Thanks

Thanks for reply. I imagined yesterday and i searched before posting but i could not find the solution. Last time i did. I tried also now but can't find nothing. Is it trouble for yoy to post the link?

Will this be solved in anyway or do i have to face this on every upgrade?

Thanks for your kind reply

Sorry for disturbing you. I had it in my Topics saved. The solution is in hikashop.com/forum/install-update/879271...joomla-to-3-4-4.html

i applied :

File "layouts/joomla/modal/main.php", replace:

$script[] = "       modalBody.prepend('" . trim($iframeHtml) . "');";

By

$script[] = "       modalBody.prepend('" . str_replace("'", "\'", trim($iframeHtml)) . "');";

Ok Thanks. I restored the main.php like before and i applied the original patch from Github

github.com/joomla/joomla-cms/pull/7845/files

is it enough to make only this change?

in the hikashop.com/forum/install-update/879271...to-3-4-4.html#214269 topic there are different changes talked about.