trying to create new project in Angularjs

[T0lst0v]

Not sure what im doing wrong but:
New ->
AngularJS (or react, or regular Angular..) template ->
Preview(without any editing of the original template) => nothing

console error :
XHRGET
https://run.plnkr.co/preview/clhj8yy7h00312e6nqg1vl72p/jsconfig.json
[HTTP/2 404 Not Found 65ms]