Fix Expo user attribute removal docs

[dcrawbuck]

Summary

Clarifies the shared Setting User Attributes docs so each SDK sees platform-specific callback and attribute removal guidance.
The Expo page now tells users to unset attributes with null, explains that undefined keys are ignored, and notes that nullable attributes require expo-superwall 1.0.5 or later.
The Flutter page no longer shows a non-compiling null removal example because its SDK currently accepts non-null Object values.

Validation

• bun run build:cf
• bun test
• /Users/dcrawbuck/.agents/skills/autoreview/scripts/autoreview --mode local

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Note

Low Risk
Mostly documentation and lazy-loading/build config; route behavior should be equivalent with a possible one-time async import on first request.

Overview
Updates Setting User Attributes so iOS, Android, Flutter, and Expo each get their own callback note and merge/unset behavior instead of one shared Swift-centric flow. Expo now documents unsetting with null, that undefined keys are dropped on the bridge, and the expo-superwall 1.0.5+ requirement; Flutter explicitly states attribute deletion via null is not supported.

Separately, several server routes (search, markdown/LLM/SDK .md/.mdx, sitemap) load @/lib/search, @/lib/markdown-route, and @/lib/source via dynamic import() at request time, with search typed behind a small DocsSearchServer interface and handleSearchGet made async. Vite adds TanStack Router codeSplittingOptions so loaders, components, and error/not-found chunks split by default—likely to keep heavy doc/source code out of the main server bundle.

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Document a real Expo attribute-change hook

For Expo users trying to react to a paywall Set user attributes action, this points them to onUserAttributesChange, but the current expo-superwall event surface does not define or dispatch that callback: I checked upstream src/SuperwallEventCallbacks.ts and src/internal/superwallEventBridge.ts, and the callback list/switch only includes the existing paywall, subscription, log, purchase, and custom-callback events. Following this quickstart would therefore compile against a nonexistent callback (or never fire if forced through types); please document the supported Expo path or add the bridge before referencing it here.

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	superwall-docs-staging	1f1ee1d	Commit Preview URL Branch Preview URL	Jun 17 2026, 06:54 PM

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Search server double initialization

Medium Severity

getServer checks server, then awaits a dynamic import before assigning. Concurrent /api/search requests can both pass the null check and each call createDocsSearchApi(), breaking the singleton and duplicating FlexSearch setup work on cold start.

 

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