Thanks for catching this.
The problem was that these samples are stored on a separate server, and it appears that due to a IT issue we are unable to access them for the time being.
As a hotfix, I moved the sample to my people.mozilla.org account and fixed it there.
I updated the MDN page's link to it.
On 12-11-27 08:55 PM, Gregg Tavares (社用) wrote: