- Add onMessageReset reference comparison to OptimizedMessageActions memo
- Force component re-render when model selection changes
- Prevent stale closure issue in retry functionality
- Ensure first retry attempt uses newly selected model
Previously, when changing the model selection, the retry button would
still use the previous model due to React memo optimization preventing
re-renders. By comparing the onMessageReset callback reference, the
component now properly updates when the model changes, ensuring the
retry functionality immediately uses the currently selected model.
Summary
This commit addresses two critical issues affecting the real-time chat experience in the Playground:
1. Optimized re-rendering of reasoning content
• Added `reasoningContent` to the comparison function of `OptimizedMessageContent` (`web/src/components/playground/OptimizedComponents.js`).
• Ensures the component re-renders while reasoning text streams, resolving the bug where only the first characters (“好,”) were shown until the stream finished.
2. Defensive checks for SSE message updates
• Added early-return guards in `streamMessageUpdate` (`web/src/hooks/useApiRequest.js`).
• Skips updates when `lastMessage` is undefined or the last message isn’t from the assistant, preventing `TypeError: Cannot read properties of undefined (reading 'status')` during rapid SSE responses.
Impact
• Real-time reasoning content now appears progressively, enhancing user feedback.
• Eliminates runtime crashes caused by undefined message references, improving overall stability.
Fix role toggle functionality where switching message roles (assistant/system)
did not update the UI immediately and required page refresh to see changes.
Changes:
- Add message.role comparison in OptimizedMessageContent memo function
- Add message.role comparison in OptimizedMessageActions memo function
The issue was caused by React.memo optimization that wasn't tracking role
changes, preventing re-renders when only the message role property changed.
Now role switches are reflected immediately in both message content display
and action button states.
Fixes: Role switching requires page refresh to display correctly
- Add CustomRequestEditor component with JSON validation and real-time formatting
- Implement bidirectional sync between chat messages and custom request body
- Add persistent local storage for chat messages (separate from config)
- Remove redundant System Prompt field in custom mode
- Refactor configuration storage to separate messages and settings
New Features:
• Custom request body mode with JSON editor and syntax highlighting
• Real-time bidirectional synchronization between chat UI and custom request body
• Persistent message storage that survives page refresh
• Enhanced configuration export/import including message data
• Improved parameter organization with collapsible sections
Technical Changes:
• Add loadMessages/saveMessages functions in configStorage
• Update usePlaygroundState hook to handle message persistence
• Refactor SettingsPanel to remove System Prompt in custom mode
• Add STORAGE_KEYS constants for better storage key management
• Implement debounced auto-save for both config and messages
• Add hash-based change detection to prevent unnecessary updates
UI/UX Improvements:
• Disabled state styling for parameters in custom mode
• Warning banners and visual feedback for mode switching
• Mobile-responsive design for custom request editor
• Consistent styling with existing design system
