docs: add tip for devtool's cheap modifier in production build #12849
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Pull request overview
This PR adds a FAQ tip to the devtool documentation explaining the behavior of cheap source map modifiers in production environments. The documentation is updated in both English and Chinese versions.
Changes:
- Added an FAQ tip section explaining that
cheapsource maps don't emit files in production due to line-level mapping limitations with minified code
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| website/docs/en/config/devtool.mdx | Added FAQ tip about cheap source maps in production (English) |
| website/docs/zh/config/devtool.mdx | Added FAQ tip about cheap source maps in production (Chinese) |
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chenjiahan
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Jan 26, 2026
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Jan 26, 2026
* docs: tip for cheap in production not emit source map * blod env
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Summary
In production, it’s expected that no source map file is emitted when using the
cheapmodifier (e.g.cheap-source-map).This is because
cheaponly provides line-level mappings, while production builds are typically minified into a single line. In that case, a source map has little practical value.Related links
Checklist