[microsoft/vscode] "Stop and send" doesn't stop

### ROOT CAUSE The "Stop and send" feature fails to cancel the ongoing request because the cancellation mechanism is not properly triggered when the button is clicked. The button only queues a new request without canceling the previous one, likely due to improper handling of the request lifecycle or missing cancellation logic. ### CODE FIX To resolve this, implement the following steps in the relevant code (e.g., in the extension or application logic): 1. **Track Active Requests**: Maintain a reference to the ongoing request (e.g., using a variable or context). 2. **Cancel on Stop**: When the "Stop and send" button is clicked, explicitly cancel the active request before initiating a new one. 3. **Abort Controller**: Use the `AbortController` API to cancel the request. Here's an example: ```javascript // Example using fetch with AbortController const abortController = new AbortController(); const activeRequest = fetch('/api/endpoint', { signal: abortController.signal }); // When Stop and send is clicked: function stopAndSend() { if (activeRequest) { activeRequest.abort(); // Cancels the ongoing request } // Start a new request const newRequest = fetch('/api/new-endpoint', { signal: new AbortController().signal // New request can be independently stopped }); } ``` **Changes Required**: - Add an `AbortController` for each request. - Update the button click handler to abort the existing request before starting a new one. - Ensure the UI reflects the cancellation state (e.g., disable the button while processing). This ensures the "Stop and send" functionality properly cancels the current request and starts a new one.