Question

I have downloaded stackoverflow’s index page as a sample to show it in my web project. In this project I have an IFrame in which I show the page’s contents but the source is preventing me to show it in IFrame. Now I have 2 questions:

1. How can I overcome this problem? (Note: I don’t want to show stackoverflow.com in an IFrame so there’s no security problems for this site).
2. Is there a better way to show a HTML page inside another one?

Thank you.

Answer 1

I used this PHP function to remove any javascript from the page’s source:

function strip_javascript($filter, $allowed=0){
                if(($allowed&1) == 0) // 1   href=...
                    $filter = preg_replace('/href=([\'"]).*?javascript:.*?\\1/i', "'", $filter);

                if(($allowed&2) == 0) // 2   <script....
                    $filter = preg_replace("/<script.*?>.*?<\/script>/i", "", $filter);

                if(($allowed&4) == 0) // 4   <tag on.... ---- useful for onlick or onload
                    $filter = preg_replace("/<(.*)?\son.+?=\s*?(['\"]).*?\\2/i", "<$1", $filter);
                return $filter;
            }