Update TrendAnalysis.py

TrendAnalysis.py

@@ -951,8 +951,9 @@ async def analyze_trends(request: Request, data_request: TrendAnalysisRequest):
     dashboard_path = f"/dash"
     
     # Get base URL from request and build complete URL
-    base_url = str(request.base_url)
-    dashboard_url = f"{base_url}dash"
+    scheme = request.url.scheme  # 'http' or 'https'
+    base_url = f"{scheme}://{request.headers['host']}"
+    dashboard_url = f"{base_url}/dash"
     
     # Open browser in a new thread
     def open_browser():