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Mention disabling getrandom for wasm32-unknown-unknown in README #1250

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Aug 14, 2022
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Mention disabling getrandom for wasm32-unknown-unknown in README #1250

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11 changes: 7 additions & 4 deletions README.md
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Expand Up @@ -143,10 +143,13 @@ unavailable.

### WASM support

The WASM target `wasm32-unknown-unknown` is not *automatically* supported by
`rand` or `getrandom`. To solve this, either use a different target such as
`wasm32-wasi` or add a direct dependency on `getrandom` with the `js` feature
(if the target supports JavaScript). See
Seeding entropy from OS on WASM target `wasm32-unknown-unknown` is not
*automatically* supported by `rand` or `getrandom`. If you are fine with
seeding the generator manually, you can disable the `getrandom` feature
and use the methods on the `SeedableRng` trait. To enable seeding from OS,
either use a different target such as `wasm32-wasi` or add a direct
dependency on `getrandom` with the `js` feature (if the target supports
JavaScript). See
[getrandom#WebAssembly support](https://docs.rs/getrandom/latest/getrandom/#webassembly-support).

# License
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