Whisper.wasm: TypeError: Module.full_default is not a function

[ThomasSteinbinder]

After following the build process described in the Whisper.wasm Readme, after going to localhost:8000/whisper.wasm, the brower console shows this:

main.js:1 Uncaught (in promise) RuntimeError: Aborted(CompileError: WebAssembly.instantiate(): unknown type form: 84 @+12). Build with -sASSERTIONS for more info.
    at abort (main.js:1:6283)
    at instantiateArrayBuffer (main.js:1:1331134)
    at async createWasm (main.js:1:1332089)

though the page seems okay. i can select a model and a file to transcribe, but hitting transcribe gives me:

whisper.wasm/:661 Uncaught TypeError: Module.full_default is not a function
    at whisper.wasm/:661:38

Any hints appreciated!
Currently working on Win11, tested with chrome and FF. The live demo works fine!

Thanks!