I'm having troubles with it in Firefox on two different Ubuntu machines. The page is all red, and the javascript source code is showing up inside the web page.

I'm having troubles with it in Firefox on two different Ubuntu machines. The page is all red, and the javascript source code is showing up inside the web page. Then I tested it in the Epiphany web browser. It worked fine on one Ubuntu machine, showing up all nice and blue. But on the other Ubuntu machine I got the red page with the javascript source code showing up, just like Firefox.