Add missing MIME types

[hugovk]

Feature or enhancement

Proposal:

https://github.com/mikeckennedy/content-types identifies some common MIME types missing from the default mimetypes list.

Running https://github.com/mikeckennedy/content-types/blob/main/samples/compare_to_builtin.py on Python 3.13 to identify some missing ones:

❯ uv run --python 3.13 --with content-types https://raw.githubusercontent.com/mikeckennedy/content-types/refs/heads/main/samples/compare_to_builtin.py
Compare types in mimetypes vs content-types.
There are 5 types where mimetypes and content-types disagree
mimetypes: .exe application/octet-stream, content-types: .exe application/x-msdownload
mimetypes: .xml text/xml, content-types: .xml application/xml
mimetypes: .wav audio/x-wav, content-types: .wav audio/wav
mimetypes: .dll application/octet-stream, content-types: .dll application/x-msdownload
mimetypes: .obj application/octet-stream, content-types: .obj model/obj

There are 0 types in mimetypes that are not in content-types

There are 31 types in content-types that are not in mimetypes
in_ct_only
.xlsx  -> application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.gz    -> application/gzip
.ods   -> application/vnd.oasis.opendocument.spreadsheet
.docx  -> application/vnd.openxmlformats-officedocument.wordprocessingml.document
.gltf  -> model/gltf+json
.rar   -> application/vnd.rar
.php   -> application/x-httpd-php
.7z    -> application/x-7z-compressed
.ogv   -> video/ogg
.odg   -> application/vnd.oasis.opendocument.graphics
.weba  -> audio/webm
.rpm   -> application/x-rpm
.odp   -> application/vnd.oasis.opendocument.presentation
.deb   -> application/x-debian-package
.epub  -> application/epub+zip
.woff2 -> font/woff2
.apk   -> application/vnd.android.package-archive
.glb   -> model/gltf-binary
.map   -> application/json
.tgz   -> application/gzip
.ttf   -> font/ttf
.otf   -> font/otf
.wmv   -> video/x-ms-wmv
.odt   -> application/vnd.oasis.opendocument.text
.ogg   -> audio/ogg
.pptx  -> application/vnd.openxmlformats-officedocument.presentationml.presentation
.m4a   -> audio/mp4
.m4v   -> video/mp4
.flac  -> audio/flac
.woff  -> font/woff
.stl   -> model/stl

With 3.14.0a4:

❯ uv run --python 3.14 --with content-types https://raw.githubusercontent.com/mikeckennedy/content-types/refs/heads/main/samples/compare_to_builtin.py
Compare types in mimetypes vs content-types.
There are 5 types where mimetypes and content-types disagree
mimetypes: .exe application/octet-stream, content-types: .exe application/x-msdownload
mimetypes: .obj application/octet-stream, content-types: .obj model/obj
mimetypes: .xml text/xml, content-types: .xml application/xml
mimetypes: .wav audio/x-wav, content-types: .wav audio/wav
mimetypes: .dll application/octet-stream, content-types: .dll application/x-msdownload

There are 13 types in mimetypes that are not in content-types
.wmf : image/wmf
.mka : audio/matroska
.fits: image/fits
.g3  : image/g3fax
.eot : application/vnd.ms-fontobject
.emf : image/emf
.jp2 : image/jp2
.jpm : image/jpm
.jpx : image/jpx
.t38 : image/t38
.mk3d: video/matroska-3d
.mkv : video/matroska
.tfx : image/tiff-fx

There are 27 types in content-types that are not in mimetypes
in_ct_only
.m4v   -> video/mp4
.wmv   -> video/x-ms-wmv
.odt   -> application/vnd.oasis.opendocument.text
.deb   -> application/x-debian-package
.odp   -> application/vnd.oasis.opendocument.presentation
.gz    -> application/gzip
.xlsx  -> application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.map   -> application/json
.apk   -> application/vnd.android.package-archive
.gltf  -> model/gltf+json
.php   -> application/x-httpd-php
.glb   -> model/gltf-binary
.rpm   -> application/x-rpm
.epub  -> application/epub+zip
.odg   -> application/vnd.oasis.opendocument.graphics
.docx  -> application/vnd.openxmlformats-officedocument.wordprocessingml.document
.ods   -> application/vnd.oasis.opendocument.spreadsheet
.7z    -> application/x-7z-compressed
.stl   -> model/stl
.m4a   -> audio/mp4
.ogv   -> video/ogg
.flac  -> audio/flac
.rar   -> application/vnd.rar
.tgz   -> application/gzip
.pptx  -> application/vnd.openxmlformats-officedocument.presentationml.presentation
.ogg   -> audio/ogg
.weba  -> audio/webm

Let's add some of these, but check with IANA and relevant specs. For example, .wav is in RFC 2361 as audio/vnd.wave not audio/wav. We currently have it as audio/x-wav.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-129965: Add missing MIME types #129969
• gh-129965: Add more missing MIME types #132845