RuntimeError: abort(LinkError: WebAssembly.instantiate(): Import #258 module="a" function="Rd" error: function import requires a callable)

**Describe the bug**
Approximately 50% of the time we run into this issue in the console which prevents ffmpeg wasm from running.

`Uncaught (in promise) RuntimeError: abort(LinkError: WebAssembly.instantiate(): Import #258 module="a" function="Rd" error: function import requires a callable). Build with -s ASSERTIONS=1 for more info.`


We are using version 0.9.7 of @ffmpeg/ffmpeg.

How we are instantiating ffmpeg:

```
const ffmpeg = createFFmpeg({
log: false,
corePath: 'https://unpkg.com/@ffmpeg/core@0.10.0/dist/ffmpeg-core.js',
});
```

Note this issue **did not** occur before chrome implemented cross origin isolation requiring headers.

Things we have tried:

1. Updating to latest versions of @ffmpeg/ffmpeg + ffmpeg/core
2. Setting the core path manually

This issue does not occur when:

We remove `Cross-Origin-Opener-Policy: same-origin` and `Cross-Origin-Embedder-Policy: require-corp` headers, and launch chrome with flag to enable SharedBufferArray (but we can't really tell users of our app to run chrome with this flag on every time).