That is the registered url:
https://git.io/J3T5S
but now it seems working:
$ wget https://git.io/J3T5S
--2021-05-24 17:16:39-- https://git.io/J3T5S
Resolving git.io (git.io)... 52.204.190.140, 54.87.76.159, 35.174.24.146, ...
Connecting to git.io (git.io)|52.204.190.140|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://gist.githubusercontent.com/austinnegron/9b44c804e2021dc82098d7b72cb0b1ca/raw/72fbc0edad40e2df1f55d308be49af950c1a93e1/tca_metadata_v2 [following]
--2021-05-24 17:16:39-- https://gist.githubusercontent.com/austinnegron/9b44c804e2021dc82098d7b72cb0b1ca/raw/72fbc0edad40e2df1f55d308be49af950c1a93e1/tca_metadata_v2
Resolving gist.githubusercontent.com (gist.githubusercontent.com)... 185.199.110.133, 185.199.109.133, 185.199.108.133, ...
Connecting to gist.githubusercontent.com (gist.githubusercontent.com)|185.199.110.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 145 [text/plain]
Saving to: ‘J3T5S’
J3T5S 100%[=====================================================================================================>] 145 --.-KB/s in 0s
2021-05-24 17:16:39 (2.29 MB/s) - ‘J3T5S’ saved [145/145]
the only problem could be is that there is no HTTP content header with applicaton/json
related: