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A guard was added in theshouldProcessUrl function to prevent processing empty or falsysrcset URLs, avoiding unintended behavior. Additionally, a new test case was introduced to verify that an emptysrcset withincludeAbsolute: true is handled correctly. No changes were made to public APIs or exports.
Added a test for handling an emptysrcset attribute withincludeAbsolute: true option.
Sequence Diagram(s)
sequenceDiagram participant TestRunner participant Compiler participant transformSrcset TestRunner->>Compiler: Compile template with <img srcset=" "> Compiler->>transformSrcset: Process srcset attribute transformSrcset->>transformSrcset: Call shouldProcessUrl(url) alt url is falsy (empty string) transformSrcset-->>Compiler: Skip processing else url is valid transformSrcset-->>Compiler: Process URL as usual end Compiler-->>TestRunner: Return compiled code
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Assessment against linked issues
Objective
Addressed
Explanation
Prevent invalid JS output for empty or whitespace-onlysrcset attributes (#631)
✅
Ensure emptysrcset does not trigger URL import or transformation logic (#631)
✅
Add regression test for emptysrcset handling (#631)
✅
Poem
A bunny hopped through fields of code, Guarding emptysrcset on the road. No more broken JS lines, Just passing tests and clear confines. With every patch, the garden grows— Safe and sound, the Vue code flows! 🐇✨
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Reviewing files that changed from the base of the PR and between347ef1d anda2c4c6b.
⛔ Files ignored due to path filters (1)
packages/compiler-sfc/__tests__/__snapshots__/templateTransformSrcset.spec.ts.snap is excluded by!**/*.snap
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The addition of theurl && check prevents processing of empty or falsy URLs, which correctly addresses the issue described in the PR. This follows JavaScript best practices for defensive programming and ensures the function returnsfalse immediately for empty strings,null, orundefined values.
The new test case directly addresses the issue described in the PR by testing an empty srcset (single space character) withincludeAbsolute: true. The test is well-named and uses snapshot testing to ensure the output remains consistent, providing good regression protection.
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🔨 p3-minor-bugPriority 3: this fixes a bug, but is an edge case that only affects very specific usage.ready to mergeThe PR is ready to be merged.scope: sfc
1 participant
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closevitejs/vite-plugin-vue#631
Summary by CodeRabbit
Bug Fixes
Tests