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Change the log level for JS parse failures in determineDependencyInfo from error to verbose. These parse errors occur frequently when a library contains third-party ESM code (using import/export), which the LBT bundler does not support. Since these modules are typically not included in custom bundles, logging at error level creates unnecessary noise for users. Errors during actual bundling (e.g. writePreloadModule) are still reported at the appropriate level.
ESM modules (using import/export) cannot be bundled with the
LBT bundler. Previously, including an ESM module in a preload
section caused the bundle to contain a literal "undefined" string
due to rewriteDefine() returning {} instead of null on parse error.
- Add Format.ESM to ModuleInfo and detect ESM in ResourcePool
during dependency analysis
- Skip ESM modules in preload, raw, and require sections with
a descriptive error message
- Exclude ESM modules from bundle subModule metadata
- Fix rewriteDefine() to return null on parse error (safety fix)
matz3
changed the title
d3xter666
approved these changes
Apr 3, 2026
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