linedemo does not run on localhost

[ZhugeLiang]

I downloaded the project zip file and unzip it to local Apache web server. I run the linedemo in /examples folder but it displays nothing. I am surprised because this demo in http://www.glge.org/demos/linedemo/ still OK.
In the code, I found that local linedemo includes glge-compiled.js but the online one uses glge_math.js and glge.js.

Is this a bug? Or I missed something to run?

Thanks.

[supereggbert]

Are you getting any errors in the console?

[ZhugeLiang]

Nothing displayed in the console.

By the way, when I re-write the demo using the javascript-way it shows.
Here are what I did to view:

• Create new Scene, Group, Material and Camera.
• Remove 3-axes and use only the positions.
• Remove setInterval() and use only renderer.render().

Above is just what I did just to prove that there is something wrong with the demo. Maybe it is the code of Document object.

Thanks for your quick reply.