Plunker demo malfunctioning

[Tiaryn]

• I'm submitting a ...
  [X] bug report
  [ ] feature request
  [ ] other

• What is the current behavior?

The plunker demo is broken.
Shown error by plunker:

Error {stack: null, originalErr: Error, constructor: Object}
stack: null
originalErr: Error
<constructor>: "Error"
name: "Error"
<constructor>: "Error"
name: "Error"

• What is the expected behavior?

Plunker builds and shows demo.

[ObaidUrRehman]

Looks like something is wrong with Plunkr.
Anyway, Plunkr is old school. I am going to move the demo to StackBlitz very soon.

Here is a temporary StackBlitz for you to try: https://stackblitz.com/edit/ng-dd-optimized

[FirstVertex]

I made this Stackblitz based on original Plunker demo:

https://stackblitz.com/edit/ng-drag-drop77

@ObaidUrRehman Can you please update doc to point to Stackblitz since Plunkr been dead for awhile now.