Error initializing custom build

[MattFerraro]

I followed the instructions here for building my own custom build, but I used the build definition given here.

The build went fine, but then when I go to use it:

import initOpenCascade from "opencascade.js"
import opencascade from './customBuild/customBuild.examples.js';
import opencascadeWasm from './customBuild/customBuild.examples.wasm';

initOpenCascade({
      mainJs: opencascade,
      mainWasm: opencascadeWasm,
    }).then((newOC) => {
      console.log("wasm is initialized!")
    })

The console shows me an error:

Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'buffer')
    at receiveInstance (opencascade.full.js:9:1)
    at receiveInstantiationResult (opencascade.full.js:9:1)

Expected behavior is that opencascade initializes properly. It does init properly if I omit my custom mainJs and mainWasm, it just takes 5 seconds or so, hence my need for a custom build.

[martinRenou]

@MattFerraro I can reproduce this error when using - -sDISABLE_EXCEPTION_CATCHING=0 in the custom build emccFlags, when setting this to -sDISABLE_EXCEPTION_CATCHING=1 it does work. I'm unsure what is going on though.

[ketanvariya]

Hello @MattFerraro,
Have you been able to resolve this problem?

The same error is appearing for me on the same line.