matrix_sdk_crypto_wasm_bg.wasm is part of bundle when build for browser.

[fasergeyte]

We have browser app and use webpack as builder. We discovered that bundle includes huge file - matrix_sdk_crypto_wasm_bg.wasm, is it required for browser bundle?

[fasergeyte]

I also created a repo with example https://github.com/fasergeyte/matrix-sdk-issue-str

[t3chguy]

This isn't the place for questions. Use #matrix-dev:matrix.org for queries next time. You can strip it in your bundler if you're not using Rust Crypto but in the future it'll be the only supported crypto.

[fasergeyte]

@t3chguy Thanks for the quick answer!
Does Web Element use it? I don't see it would load this large file in dev tools in browser.

[t3chguy]

Element Web uses it if you have that feature enabled, e.g. develop.element.io does

[richvdh]

To be clear: Element-Web puts the matrix_sdk_crypto_wasm_bg.wasm.js into a separate chunk which is only downloaded once Rust crypto is enabled (currently https://develop.element.io/bundles/e7951d5c676552b67da7/6984.js). As far as I know this is just default behaviour for Webpack, so I'm not really sure why it's not working for you.