[Bug]: "asset/resource" module used to handle ".lottie"-animations works in dev-mode but breaks animation-file in production mode

[fredrik-lindqvist]

System Info

System:
OS: macOS 14.2.1,
CPU: Apple M2 pro
Memory: 16gb
Shell: 5.9 - /bin/zsh
Binaries:
Node: 20.10.0
npm: 10.2.3
Browsers:
Chrome 121.0.6167.160
Safari 17.2.1
npmPackages:
@rspack/cli: 0.5.4
@rspack/core: 0.5.4
@dotlottie/player-component: 1.3.2
react: 18.2.0
react-dom: 18.2.0

Details

To handle import of animations (".lottie"-files ) in my app i use builtin "asset/resource" module. This works great in development mode and all animations are imported correctly. However when I switch to production mode, all imported animations break and can not be loaded correctly. If i switch to webpack 5 (version 5.89.0) all files are loaded correctly in both production and development mode.

Reproduce link

No response

Reproduce Steps

1. setup "asset/resource" to handle ".lottie" files in rspack.config
2. set mode to "production" in rspack.config
3. import a ".dotlottie"-file to dot-lottie-player from @dotlottie/player-component
4. animation wont work
5. switch to development mode in rspack.config
6. animation will work

[fredrik-lindqvist]

just downgraded to version 0.5.1 for @rspack/cli and @rspack/core: and then all dotLottie-animations work great in dev and production mode. Also tried version 0.5.2 and then the files break in production. Seems that the files loses their mimetype.

[magic-akari]

Same issue.

I attempted to address the issue by replacing the JSON path loading method with an inline JSON object(animationData), but the problem persisted. Therefore, I speculate that this issue is unrelated to the assets loader.

[h-a-n-a]

@fredrik-lindqvist Sorry I'm not able to reproduce. Would you please provide a minimal repo?

[github-actions]

Hello @fredrik-lindqvist, sorry we can't investigate the problem further without reproduction demo, please provide a repro demo by forking rspack-repro, or provide a minimal GitHub repository by yourself. Issues labeled by need reproduction will be closed if no activities in 14 days.

[magic-akari]

Here is a minimal reproduction.
This issue is related to optimization.minimize.
rspack-lottie-1.0.0.tgz

[fredrik-lindqvist]

@magic-akari thanks for the repo. @h-a-n-a see comment above.

[xc2]

thanks @magic-akari

it seems a swc_ecma_minifier related bug, and i've created an issue for this case.

swc-project/swc#8651

please help with it