HTML5 Canvass not showing up in wordpress

I have this little HTML5 Canvas script that uses HTML5 to draw little designs.(you can view it here: https://www.artifacting.com/point) Here is the code for it (or view the source in your browser):

[Code moderated as per the Forum Rules. Please use the pastebin]

I want to put it the script into my wordpress blog so that it will run in a post. But whenever I copy what is in between the body tags and paste it into my post the script doesn’t show up. Could somebody help me figure out why? Thanks!