openml / openml/OpenML

MIME type for CSV files should be text/csv

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PHP
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Description

When I am trying to download a dataset, like https://www.openml.org/data/get_csv/61/dataset_61_iris.arff, the HTTP headers says it is a plain text file:

HTTP/1.1 200 OK
Date: Tue, 03 Dec 2019 23:24:56 GMT
Server: Apache/2.4.29 (Ubuntu)
Set-Cookie: ci_session=tn9ucdbuum857upd4j89otpgvv4fv9jh; expires=Wed, 04-Dec-2019 01:24:56 GMT; Max-Age=7200; path=/; HttpOnly
Expires: 0
Cache-Control: must-revalidate
Pragma: public
Content-Description: File Transfer
Content-Disposition: attachment; filename=dataset_61_iris.csv
Content-Transfer-Encoding: binary
Connection: keep-alive
Keep-Alive: timeout=300, max=500
Vary: Accept-Encoding
Content-Length: 4612
Content-Type: text/plain;charset=UTF-8

RFC 7111 specifies that it should be text/csv: https://www.iana.org/assignments/media-types/text/csv

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First steps

  1. Read the whole issue, then the project's contributing guide.
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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the download endpoint serving the dataset URL and inspect how the CSV response headers are set. Confirm the response currently uses text/plain, then verify that CSV downloads return Content-Type text/csv and retain the existing attachment behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
backend
Issue type
Bug
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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