Endless loading of the "image tracking" example in README

[Sadji0]

Hi!
I tryed to use example in README as "Image tracking", but it's not wroking. Endless loading and eat much browser memory.
What should I do?
I also tryed to do copy paste and change ways for working in my github webpage. But it's not worked. But marker tracking is working

[msoula]

You should display debug console in your browser (F12 on both chrome and firefox) then check whether there is an error when loading assets.
If a-frame script fails, there won't be any visible information but on the console.

[rainerlonau]

I had the same experience. The code at https://github.com/AR-js-org/AR.js#-image-tracking doesn´t work out of the box. It´s because line 39 and 46 need to be adjusted.
There´s this hint in the code:
<!-- we use cors proxy to avoid cross-origin problems ATTENTION! you need to set up your server -->

The code for the Image Tracking Example here https://ar-js-org.github.io/AR.js-Docs/ worked out of the box.