`ReferenceError: window is not defined` upon import

[herumi]

`ReferenceError: window is not defined` upon import

[benediamond]

i installed it using yarn add mcl-wasm. is this correct?

[herumi]

What browser do you use?
Open
https://herumi.github.io/mcl-wasm/browser/demo.html
and run 'test IBE'. Does it run?

[benediamond]

chrome 95.0.4638.54. yes, it runs.

[benediamond]

but i noticed in that test page, you directly import mcl.js as a script in your html page. whereas I'd rather import it from within my other javascript files, not directly in the html file.

[herumi]

Thanks for the information.
When I check import mcl from 'mcl-wasm/'; with React before, it runs well.
I'll check it again for the latest version.

[herumi]

https://github.com/herumi/misc/tree/master/react/test2 is a tiny sample of mcl-wasm ith React and webpack. It runs well. Could you check it?

import mcl from "mcl-wasm/browser";

[benediamond]

after going to public/, i get:

this is a test
1234567:894452905640319049678920984443007266612159160327439547902176562641551440349

with no errors in the console. so it looks like it works.

i still don't know what is going wrong on my end, but I can investigate further tomorrow. either way, this test will hopefully help me bootstrap a working setup. thanks for this. hopefully tomorrow i can diagnose and let you know what the issue is.

[benediamond]

FYI, here is my stack trace:

ReferenceError: window is not defined
    at Object../node_modules/mcl-wasm/browser/src/index-browser.js (index-browser.js:3)
    at __webpack_require__ (bootstrap:24)
    at fn (hot module replacement:61)
    at Module../src/crypto/worker.js (bn128.js:20)
    at __webpack_require__ (bootstrap:24)
    at bootstrap:49
    at Function.__webpack_require__.O (chunk loaded:23)
    at __webpack_require__.x (bootstrap:50)

still working on diagnosing this.

[benediamond]

update: i am able to get this to work in my main (non-worker) scripts. when i try to load mcl inside a worker, i get the error.

[herumi]

Could you write the minimum example?

[benediamond]

I invited you to a repo containing a minimal example. can you let me know if you received it and can reproduce?

[herumi]

Worker has not window but self, so I fixed mcl-wasm to use it.
eda1ff4

cf. https://stackoverflow.com/a/48183681

1. Add resolve: { fallback: { "crypto": false} } , to webpack.config.js.
2. Use import mcl from "mcl-wasm/browser"; instead of import {mcl} from "mcl-wasm/browser";.

Then, I think it will run well.

[benediamond]

works. many thanks!

[benediamond]

hello! it seems that somewhere strictly after 0.9.0 but on-or-before 1.0.3, this issue reverted. can you please confirm whether you are able to reproduce? if not, i can provide an MWE. thanks.

[herumi]

Thank you for the information.

Please use

import * as mcl from 'mcl-wasm';

instead of

import mcl from "mcl-wasm";

[benediamond]

this appears to work! many thanks as always for the great work.