XSS cookie steeling error

I was injecting the script so the cookies would be sent to an email, the error was that in the search i was injecting into returned an error stating the search does not read the * and ? characters. I was using a ? in the xss script as http://site.com/cookie.php?cookie…………….. I am assuming this means I need to configure the injection to where I will not have to use the ? character. However I closed the search: "> and then added the script. <script>….</script> Just looking for a bit of assistance.

Just a suggestion, unless you are doing this on your site, you may want to remove this post.

Load the script from a file.

<script src="scriptfile_goes_here.js">