Michael Chihlas
8914391336
Two compounding bugs caused the previous session's questions/actions
to render briefly when entering a new chat — visible as "the new
session instantly pops with old session task-lane data" the user
reported.
The race
- AssistantChatPage's activeQuestions / activeActions / showTaskLane
useState initializers synchronously read sessionStorage's
rf-tasklane-meta. They restore the persisted task-lane state if its
saved chatId matches the freshly-resolved activeChatId.
- On dashboard prefill flow, the page mounts on /pilot with
location.state.prefill set; activeChatId initializes from
sessionStorage's rf-active-chat-id (the previous session). The
previous session's task-lane meta matches that chatId — so the
initializer restores it. First paint shows old questions/actions.
sendPrefill's resetSessionDerivedState fires later from a useEffect,
but only after the flash.
- Same pattern hits the senior-pickup flow: ?pickup=true means we're
about to render the magic-moment screen and discard whatever chat
the senior was previously on, but the underlying chat surface still
initializes with their old task-lane meta.
The amplifier
- resetSessionDerivedState wiped the in-memory state but never
removed sessionStorage's rf-tasklane-meta. Any remount or reload
before the next persistence-effect write could re-hydrate the
cleared state from the still-stale sessionStorage entry.
Fixes
- Initializer guard: when location.state.prefill is set OR
?pickup=true is in the URL, skip the sessionStorage restore
entirely. Kills the first-paint flash for both entry paths.
- Eager wipe: resetSessionDerivedState now also calls
sessionStorage.removeItem('rf-tasklane-meta'). The persistence
effect re-saves on the next state change anyway, so the only
window where sessionStorage is empty is the exact window where
stale-tag leakage was happening.
tsc -b clean. No backend changes.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
React + TypeScript + Vite
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
Currently, two official plugins are available:
- @vitejs/plugin-react uses Babel (or oxc when used in rolldown-vite) for Fast Refresh
- @vitejs/plugin-react-swc uses SWC for Fast Refresh
React Compiler
The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see this documentation.
Expanding the ESLint configuration
If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
export default defineConfig([
globalIgnores(['dist']),
{
files: ['**/*.{ts,tsx}'],
extends: [
// Other configs...
// Remove tseslint.configs.recommended and replace with this
tseslint.configs.recommendedTypeChecked,
// Alternatively, use this for stricter rules
tseslint.configs.strictTypeChecked,
// Optionally, add this for stylistic rules
tseslint.configs.stylisticTypeChecked,
// Other configs...
],
languageOptions: {
parserOptions: {
project: ['./tsconfig.node.json', './tsconfig.app.json'],
tsconfigRootDir: import.meta.dirname,
},
// other options...
},
},
])
You can also install eslint-plugin-react-x and eslint-plugin-react-dom for React-specific lint rules:
// eslint.config.js
import reactX from 'eslint-plugin-react-x'
import reactDom from 'eslint-plugin-react-dom'
export default defineConfig([
globalIgnores(['dist']),
{
files: ['**/*.{ts,tsx}'],
extends: [
// Other configs...
// Enable lint rules for React
reactX.configs['recommended-typescript'],
// Enable lint rules for React DOM
reactDom.configs.recommended,
],
languageOptions: {
parserOptions: {
project: ['./tsconfig.node.json', './tsconfig.app.json'],
tsconfigRootDir: import.meta.dirname,
},
// other options...
},
},
])