ConnectionError: Couldn't reach https://raw.githubusercontent.com/huggingface/datasets/2.0.0/datasets/glue/glue.py
Hi @klyuhang9,

I'm sorry but I can't reproduce your problem:
```python
In [4]: ds = load_dataset("glue", "sst2", download_mode="force_redownload")
Downloading builder script: 28.8kB [00:00, 9.15MB/s]                                                                                                                                                       
Downloading metadata: 28.7kB [00:00, 10.7MB/s]                                                                                                                                                             
Downloading and preparing dataset glue/sst2 (download: 7.09 MiB, generated: 4.78 MiB, post-processed: Unknown size, total: 11.88 MiB) to .../.cache/huggingface/datasets/glue/sst2/1.0.0/dacbe3125aa31d7f70367a07a8a9e72a5a0bfeb5fc42e75c9db75b96da6053ad...
Downloading data: 100%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 7.44M/7.44M [00:01<00:00, 4.12MB/s]
Dataset glue downloaded and prepared to .../.cache/huggingface/datasets/glue/sst2/1.0.0/dacbe3125aa31d7f70367a07a8a9e72a5a0bfeb5fc42e75c9db75b96da6053ad. Subsequent calls will reuse this data.  
100%|██████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 3/3 [00:00<00:00, 1047.96it/s]

In [5]: ds
Out[5]: 
DatasetDict({
    train: Dataset({
        features: ['sentence', 'label', 'idx'],
        num_rows: 67349
    })
    validation: Dataset({
        features: ['sentence', 'label', 'idx'],
        num_rows: 872
    })
    test: Dataset({
        features: ['sentence', 'label', 'idx'],
        num_rows: 1821
    })
})
```

Please, note that sometimes GitHub has some temporary connectivity issues. Feel free to retry and re-open this issue if the problem persists.
Hi, I meet a problem.
When I run the code:
`dataset = load_dataset('glue','sst2')`

There is a issue raising:
ConnectionError: Couldn't reach https://raw.githubusercontent.com/huggingface/datasets/2.0.0/datasets/glue/glue.py

I don't know why; it is ok when I use Google Chrome to view this url. 
Thanks for your help!