v1.6.1: Browser dist entry point is an empty stub, breaking all named exports

[eliaharris]

Expected Behavior

dist/browser/index.js should contain the full pre-bundled browser build with all named exports (Jimp, ResizeStrategy, etc.), as it does in v1.6.0.

Current Behavior

In v1.6.1, dist/browser/index.js is a 3-line stub that exports nothing:

export {};
// A stub. The real build is done by rollup.
//# sourceMappingURL=index-browser.mjs.map

Similarly, dist/browser/index.d.ts is:

export {};
//# sourceMappingURL=index-browser.d.mts.map

This causes any bundler that resolves the browser export condition (e.g. Rollup's nodeResolve({ browser: true }), Webpack) to get an empty module. Named imports like import { Jimp, ResizeStrategy } from "jimp" silently resolve to undefined, causing runtime errors.

Failure Information (for bugs)

Steps to Reproduce

1. Install jimp@1.6.1 (or jimp@^1.6.0 which resolves to 1.6.1)
2. Use any bundler that respects the browser export condition in package.json (Rollup with @rollup/plugin-node-resolve({ browser: true }), Webpack, Stencil, etc.)
3. Import named exports: import { Jimp, ResizeStrategy } from "jimp";
4. The imports resolve to undefined because the browser entry point is a stub

Comparison:

File	v1.6.0	v1.6.1
dist/browser/index.js	727KB, 236 lines, full bundle with exports	98 bytes, stub: export {};
dist/browser/index.d.ts	116KB, 1764 lines of type declarations	55 bytes, stub: export {};
dist/browser/index.js.map	2.9MB	3.0MB (references full build sources)

Note that the sourcemap in 1.6.1 references all the expected source files and is actually larger than the 1.6.0 sourcemap — suggesting the full Rollup build ran but its output was not written to dist/browser/index.js.

The package.json exports field still points to the stub:

".": {
  "browser": {
    "types": "./dist/browser/index.d.ts",
    "default": "./dist/browser/index.js"
  }
}

Context

• Jimp Version: 1.6.1 (1.6.0 works correctly)
• Operating System: macOS Darwin 25.3.0
• Node version: v24.3.0

Failure Logs

jimp__WEBPACK_IMPORTED_MODULE_2__.ResizeStrategy).BILINEAR
              ^-- ResizeStrategy is undefined

Attempted import error: 'Jimp' is not exported from 'jimp' (imported as '$hgUW1$Jimp').

[eliaharris]

As a side note, when I built Jimp locally, the dist folder looks correct. This just must have been some freak accident/caching issue.

[fvilers]

I've got the same issue with a Svelte (5.55.2) and Vite (8.0.7) app while building on Node 22 (linux).

[Moumouls]

@hipstersmoothie any chance you could try releasing the package again? @eliaharris mentioned that Jimp is building correctly, and the browser dist seems to exist on master, to see if it helps here.

(On my side i can confirm also the issue under storybook env with webpack 5 compiler)