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[5.107.1 regression] The functions exported by CommonJS through exports are wrongly marked as unused and are lost on the exports. #21178
Description
Have you used AI?
No
Bug Description
source
output
before version 5.107.1, for example 5.107.0
related pr
maybe #21003
Link to Minimal Reproduction and step to reproduce
packing npm package ali-oss
Expected Behavior
run normally
Actual Behavior
TypeError: this.buildCanonicalizedResource is not a function
Environment
Both webpack 5.107.1 and 5.107.2 have this problem.Is this a regression?
Yes (please specify version below)
Last Working Version
5.107.0
Additional Context
No response
Activity
ShenHongFei commentedon Jun 12, 2026
It is difficult to analyze which of the exported items are actually not being used in exports. It is not recommended to perform tree shaking.
e.g. let e = exports; e[str + str2].method()
fix: keep all CommonJS exports when an exported function accesses the…
fix: keep all CommonJS exports when an exported function accesses the…
fix: keep all CommonJS exports when an exported function accesses the…
fix: keep all CommonJS exports when an exported function accesses the…
fix: keep all CommonJS exports when an exported function accesses the…
fix: keep all CommonJS exports when an exported function accesses the…
fix: keep all CommonJS exports when an exported function accesses the…
fix: keep all CommonJS exports when an exported function accesses the…