Summary

Although Rsbuild doesn't directly support setting dev.lazyCompilation with a custom serverUrl, we can leverage api.modifyRsbuildConfig to modify both assetPrefix and dev.lazyCompilation.serverUrl. However, there's an inconsistency: assetPrefix will find and replace <port> placeholders, while dev.lazyCompilation.serverUrl does not perform this replacement, leading to configuration mismatches.

dev: {
    assetPrefix: 'http://xxx:<port>/',
    lazyCompilation: {
      serverUrl: 'http://xxx:<port>/'
      // ...
    }
},

Therefore, in the lazyCompilationMiddleware, we need to check if is present in the URL, and if so, we need to replace it.

Related Links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).