Add MIME type for .mjs
#12399
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Add MIME type for .mjs
#12399
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Pull Request Overview
This PR adds MIME type support for .mjs (ES module) files by registering them with the application/javascript content type. This change is needed to properly serve .mjs files used by the st.pdf worker script on Windows platforms where the MIME type may not be correctly configured by default.
- Adds
.mjsextension mapping toapplication/javascriptMIME type in the server initialization - Extends existing test coverage to verify
.mjsfiles are handled correctly
Reviewed Changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| lib/streamlit/web/server/server.py | Adds MIME type registration for .mjs files as application/javascript |
| lib/tests/streamlit/web/server/routes_test.py | Extends test setup and assertions to include .mjs file handling |
| lib/tests/streamlit/web/server/component_request_handler_test.py | Adds test cases for .mjs MIME type handling in component request handler |
lukasmasuch
approved these changes
Sep 2, 2025
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lukasmasuch
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LGTM 👍 Thanks for the contribution.
sfc-gh-lmasuch
approved these changes
Sep 2, 2025
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Describe your changes
Added MIME type for
.mjsfile extension as it is needed for the worker script ofst.pdfon some Windows platformsGitHub Issue Link (if applicable)
Fixes #12387
Testing Plan
MIME types tests got extended.
Contribution License Agreement
By submitting this pull request you agree that all contributions to this project are made under the Apache 2.0 license.