Missing element: expected ".tabbed-labels" to be present

[berg223]

Some specific article report the following error in console:

index.ts:77 Uncaught ReferenceError: Missing element: expected ".tabbed-labels" to be present
    at z (index.ts:77:11)
    at Fo (index.ts:136:21)
    at index.ts:114:21
    at Array.map (<anonymous>)
    at Uo (index.ts:114:8)
    at bundle.ts:251:16
    at Array.map (<anonymous>)
    at bundle.ts:251:6
    at e._subscribe (defer.ts:55:15)
    at e._trySubscribe (Observable.ts:244:19)

However, article like this won't report error. Is this a bug? How to fix it?

Here is my repo of source code.

[squidfunk]

Did you configure content tabs correctly? It's likely related to the missing alternate_style setting:

markdown_extensions:
  - pymdownx.superfences
  - pymdownx.tabbed:
      alternate_style: true 

[berg223]

Thanks @squidfunk It worked! You are my hero!