Simple download and run the example locally does not work( on Windows 10)

I have clonned your repository hoping that I can run the https://github.com/3box/sss-wasm/tree/master/example offline from my system, the index opens, but the logic does not work.
Browser console shows loading errors like `Fetch API cannot load file:///C:/Users/myUser/Desktop/sss-wasm-master/example/wrapper.wasm. URL scheme must be "http" or "https" for CORS request.` Further there is this trace:

```
sss-wasm.js:13463 wasm streaming compile failed: TypeError: Failed to fetch
anonymous) | @ | sss-wasm.js:13463
| Promise.catch (async) |   |  
  | doNativeWasm | @ | sss-wasm.js:13462
  | Module.asm | @ | sss-wasm.js:13501
  | Wrapper | @ | sss-wasm.js:13523
  | (anonymous) | @ | sss-wasm.js:13048
  | load | @ | sss-wasm.js:13047
  | createShares | @ | sss-wasm.js:13073
  | do_split | @ | index.html:62
```
There is a few more and the last is `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.`

The issue is about running the example locally on Windows 10, which fails due to CORS and WASM loading errors. Look at the example directory, specifically index.html and sss-wasm.js, to understand how the WASM binary is loaded. The error suggests the need to preload the binary; check the build process (emcc.py) and see if the example expects an HTTP server. Running a local server might be required, and modifications to the loading logic could be needed.

索引モデルが issue の本文から書いたものです。