Chat history incorrectly shared across different URLs within the same tab

[Youpen-y]

Problem

When users navigate to different URLs within the same browser tab, the chat history is shared across all URLs. This causes conversations from one page to incorrectly appear on a different page.

Reproduction Steps

1. Open a URL (e.g., github.com/user/home)
2. Start a chat conversation in the side panel
3. Navigate to a different URL in the same tab (e.g., github.com/user/repos)
4. Open the side panel - the previous page"s chat history is displayed

Expected Behavior

Each URL should have its own isolated chat history. When navigating to a different URL, the chat should be empty or show that URL"s specific history.

Root Cause

The chat history storage uses chat:tab:{tabId} as the storage key, which doesn"t include the URL. This means all URLs in the same tab share the same chat history storage.

Proposed Solution

Use chat:tab:{tabId}:{normalizedUrl} as the storage key to isolate chat history by URL.

Workaround

Users can manually clear chat history when switching pages, but this is not ideal.

Affected Files

• apps/chrome-extension/src/entrypoints/sidepanel/chat-history-store.ts
• apps/chrome-extension/src/entrypoints/sidepanel/chat-history-runtime.ts
• apps/chrome-extension/src/entrypoints/sidepanel/main.ts
• apps/chrome-extension/src/entrypoints/sidepanel/ui-state-runtime.ts