The top-level-await experiment is not enabled (set experiments.topLevelAwait: true to enabled it)

[quassnoi]

The top-level-await experiment is not enabled (set experiments.topLevelAwait: true to enabled it)

[ovidiuch]

@quassnoi Thanks for reporting this.

Previously topLevelAwait had to be enabled manually, which was mentioned in the v6 migration guide. But just pushed a fixed that does it automatically.

Please run npm i -D react-cosmos@next react-cosmos-plugin-webpack@next again and see if this error goes away?

[quassnoi]

It works now, thanks!

With create-react-app, it's not easy to change the webpack configuration without ejecting or rewiring, so this would definitely be useful for a lot of people.

[ovidiuch]

It works now, thanks!

With create-react-app, it's not easy to change the webpack configuration without ejecting or rewiring, so this would definitely be useful for a lot of people.

You're welcome!

Btw you can always override the webpack config as described here: https://github.com/react-cosmos/react-cosmos/tree/main/docs#webpack-config-override.

[quassnoi]

It works now, thanks!
With create-react-app, it's not easy to change the webpack configuration without ejecting or rewiring, so this would definitely be useful for a lot of people.

You're welcome!

Btw you can always override the webpack config as described here: https://github.com/react-cosmos/react-cosmos/tree/main/docs#webpack-config-override.

I didn't know that!

Can we emit something to this effect in the console log when you run cosmos with webpack?

[Cosmos] Learn how to override webpack config for cosmos: https://github.com/react-cosmos/react-cosmos/tree/main/docs#webpack-config-override

, if you don't have a custom config already?

I can put together a PR if you want.

[ovidiuch]

I didn't know that!

Can we emit something to this effect in the console log when you run cosmos with webpack?

[Cosmos] Learn how to override webpack config for cosmos: https://github.com/react-cosmos/react-cosmos/tree/main/docs#webpack-config-override

, if you don't have a custom config already?

I can put together a PR if you want.

Sure, sounds like a good idea.

This is the file you're interested in https://github.com/react-cosmos/react-cosmos/blob/main/packages/react-cosmos-plugin-webpack/src/server/webpackConfig/getUserWebpackConfig.ts.

Just note that this hint might be useful if you have a custom config, too. Like in your case, technically you're passing the CRA webpack config as a custom webpack config, and you might still want to override it.

So with Cosmos you have a base webpack config, which could be the Cosmos-generated default webpack config or a custom config passed via webpack.configPath, and it both cases you can override it via webpack.overridePath.