- https://xss-game.appspot.com/
- http://www.ascii.cl/htmlcodes.htm
- https://excess-xss.com/
- https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
- http://phpsecurity.readthedocs.io/en/latest/Cross-Site-Scripting-(XSS).html
- https://gist.github.com/sseffa/11031135
- http://blog.portswigger.net/2016/01/xss-without-html-client-side-template.html