pythongh-140942: Add MIME type for .cjs extension (python#140937)

johnfraney · hugovk · web-flow · commit d890aba748e5 · 2025-11-11T14:33:56.000Z
Co-authored-by: Hugo van Kemenade &lt;1324225+hugovk@users.noreply.github.com&gt;
diff --git a/Doc/whatsnew/3.15.rst b/Doc/whatsnew/3.15.rst
@@ -451,6 +451,7 @@ math
 mimetypes
 ---------
 
+* Add ``application/node`` MIME type for ``.cjs`` extension. (Contributed by John Franey in :gh:`140937`.)
 * Add ``application/toml``. (Contributed by Gil Forcada in :gh:`139959`.)
 * Rename ``application/x-texinfo`` to ``application/texinfo``.
   (Contributed by Charlie Lin in :gh:`140165`)
diff --git a/Lib/mimetypes.py b/Lib/mimetypes.py
@@ -486,6 +486,7 @@ def _default_mime_types():
         '.wiz'    : 'application/msword',
         '.nq'     : 'application/n-quads',
         '.nt'     : 'application/n-triples',
+        '.cjs'    : 'application/node',
         '.bin'    : 'application/octet-stream',
         '.a'      : 'application/octet-stream',
         '.dll'    : 'application/octet-stream',
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-11-04-12-18-06.gh-issue-140942.GYns6n.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-11-04-12-18-06.gh-issue-140942.GYns6n.rst
@@ -0,0 +1,2 @@
+Add ``.cjs`` to :mod:`mimetypes` to give CommonJS modules a MIME type of
+``application/node``.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Add ``.cjs`` to :mod:`mimetypes` to give CommonJS modules a MIME type of
	`2`	+``application/node``.