doesn't work in browser

[acarl005]

Hello. I love the idea of leveraging expat in JS, but I want to use it in the browser. I tried bundling this module with Webpack, but I get this error

Uncaught (in promise) abort("abort(\"on the web, we need the wasm binary to be preloaded and set on Module['wasmBinary']. emcc.py will do that for you when generating HTML (but not JS)\"). Build with -s ASSERTIONS=1 for more info."). Build with -s ASSERTIONS=1 for more info.

[kaymccormick]

Ddi you try following the instructions? What is your overall project and webpack configuration?

[kaymccormick]

this is my error:

ERROR in ./node_modules/expat-wasm/lib/expat.wasm
Module not found: Error: Can't resolve 'env' in '/local/home/jade/work/github/react/myapp1/node_modules/expat-wasm/lib'
@ ./node_modules/expat-wasm/lib/expat.wasm
@ ./node_modules/expat-wasm/lib/evented.js
@ ./node_modules/expat-wasm/lib/index.js
@ ./src/test-asm.js
@ ./src/App.js
@ ./src/index.js
@ multi (webpack)-dev-server/client?http://0.0.0.0:8080 ./src/index.js

[hildjj]

I'm looking into this. webpack/webpack#7352 seems relevant

[kaymccormick]

Now I get:

evented.js:6 Uncaught (in promise) TypeError: Cannot create property 'onRuntimeInitialized' on string '1c1d0270774c5f18efd667e84754f919.wasm'
at push../node_modules/expat-wasm/lib/evented.js.resolve (evented.js:6)
at new Promise ()
at Object../node_modules/expat-wasm/lib/evented.js (evented.js:5)
at webpack_require (bootstrap:63)
at Object../node_modules/expat-wasm/lib/index.js (index.js:3)
at webpack_require (bootstrap:63)
at webpack_require.t (bootstrap:158)

I pretty much have no idea how any of this stuff works! But I'll poke around some more and try to do some troubleshooting and make a repro case.

[hildjj]

I hacked this to work, and I'm not terribly proud of the solution, which included base64-encoding the .wasm file and embedding it into a node module.

It may be that WASM ESM integration may make this better one day. The goal is a consistent way of using WASM-based npm packages built with emscripten in both node and on the web.