I'm trying to get the plugin working with go version go1.13.8 linux/amd64

I have the plugin and both examples building. Running the node example doesn't cause an error, but the result printed is '0'. In the web example, the browser console has the following error on loading:

Uncaught (in promise) TypeError: fs.writeSync is not a function
    wasmWrite wasm_exec.js:248
    run wasm_exec.js:475
    init gobridge.ts:28
    default_1 gobridge.ts:32
    go main.go:2

To get to this point I had to update the ./lib/wasm_exec.js for v1.13 (see attached) but I'm not sure how to fix this error yet.
wasm_exec.js.txt