Dustin ByrneandGitHub d81439f927 fix(browser): fix slim bundle + extension bundles crash from inconsistent property mangling (#3316) ...

* test: add playwright tests for slim bundle + extension bundles (#3313)

Regression tests that load the actual built module.slim.js and
extension-bundles.js in a browser and exercise every extension bundle.

* fix: share terser nameCache across entries for consistent property mangling

Without a shared nameCache, terser independently mangles _-prefixed
properties to different short names in each rollup entry, causing runtime
crashes when module.slim.js and extension-bundles.js are combined.

Top-level variable names (vars) are reset per-entry since each ES module
has its own scope.

Fixes #3313

* test: post-build check for cross-bundle mangling consistency

Parses source maps after every build to verify that all shared _-prefixed
properties were mangled to the same short names. Fails the build with
exact diagnostics if they diverge.

* chore: add changeset

* review: parameterise duplicate init tests, stricter mismatch check

2026-04-01 17:03:15 -04:00

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fix(browser): fix slim bundle + extension bundles crash from inconsistent property mangling (#3316)

2026-04-01 17:03:15 -04:00