init no longer called in bundle?

[cryptoquick]

🐛 Bug description

We've been trying to figure out what's causing an error detailed in this thread: rustwasm/wasm-bindgen#3306

In particular, the issue is that functions imported from binaries generated from wasm-pack build --target bundler fail to run when called, and instead return the error Undefined __wbindgen_malloc.

🤔 Expected Behavior

A bundle is returned where functions are called that run without malloc errors.

👟 Steps to reproduce

The code I'm trying to run is deployed here: https://unpkg.com/browse//bitmask-core@0.5.0/

When bundled with webpack, and a function is imported and called, the above error occurs. The error goes away if init is called and awaited from the web target, but init is not returned as a default export by the bundler in a similar way.

🌍 Your environment

Arch Linux 6.1.9-zen1-1-zen #1 ZEN SMP PREEMPT_DYNAMIC Wed, 01 Feb 2023 17:07:37 +0000 x86_64 GNU/Linux
rustc 1.67.0 (fc594f156 2023-01-24)
wasm-pack 0.10.3

[tombelieber]

same here