Links for STR JSON on GCP and AWS on data page have wrong MIME type

[phildarnowsky-broad]

The data page has links under https://gnomad.broadinstitute.org/data#v3-short-tandem-repeats to distribution data in JSON format for STRs. However, the links to GCP and AWS (Azure link is fine) apparently have an incorrect MIME-type set, leading to this error when you try to follow one: SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data. Investigation of the headers shows the Content-Type is set to application/json, but no encoding is set, so that's presumably the proximate cause.

[phildarnowsky-broad]

[rileyhgrant]

From browser meeting: consider just serving a gzip'd json file