Dataset Viewer issue for CSV datasets
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this should now be fixed Confirmed, it's fixed now. Thanks for reporting, and thanks @coyotte508 for fixing it

<img width="1123" alt="Capture d’écran 2022-06-21 à 10 28 05" src="https://user-images.githubusercontent.com/1676121/174753833-1b453a5a-6a90-4717-bca1-1b5fc6b75e4a.png">

### Link

https://huggingface.co/datasets/scikit-learn/breast-cancer-wisconsin

### Description

I'm populating CSV datasets [here](https://huggingface.co/scikit-learn) but the viewer is not enabled and it looks for a dataset loading script, the datasets aren't on queue as well. 

You can replicate the problem by simply uploading any CSV dataset.

### Owner

Yes
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