Work on CORS again. Chromium now enforces the new "Local Network Access" permission and prompting. This was a problem because pfSense was set to resolve dev-api.oneskyit.com back to 192.168.32.7 instead of the normal external IP. Turned this off. Hopefully it won't break other things.

app/main.py

@@ -114,6 +114,7 @@ app.mount('/static', StaticFiles(directory='static'), name='static')
 setup_routers(app)
 
 
+# Updated 2026-02-23
 # BEGIN: CORS
 # NOTE: Eventually this should query the DB for the specific list based on the cfg table and or site_domain table. That way it is dynamic and only allowing those defined in the DB. No wildcards or regex.
 # NOTE: Need to include .localhost for less browser restrictions! Mainly for audio and video.
@@ -132,6 +133,44 @@ app.add_middleware(
 # END: CORS
 
 
+# Updated 2026-02-23
+# Add middleware to ensure Access-Control-Allow-Private-Network is present
+# when the response already includes CORS allow-origin (i.e. origin was allowed).
+@app.middleware("http")
+async def cors_pna_middleware(request: Request, call_next):
+    """Add `Access-Control-Allow-Private-Network: true` to responses
+    only when CORS has already allowed the request's origin. This avoids
+    echoing PNA for disallowed origins and leverages the existing
+    CORSMiddleware origin validation.
+    """
+    response = await call_next(request)
+    # Rely on existing CORS logic (CORSMiddleware) to validate origin.
+    # Only add the PNA header if an Allow-Origin header is present.
+    if response.headers.get('access-control-allow-origin') or response.headers.get('Access-Control-Allow-Origin'):
+        response.headers['Access-Control-Allow-Private-Network'] = 'true'
+    return response
+
+
+# Updated 2026-02-23
+# Temporary debug middleware: logs Origin and PNA-related request/response headers
+# Activate only when an Origin header is present to limit log noise.
+# @app.middleware("http")
+# async def debug_pna_logging_middleware(request: Request, call_next):
+#     origin = request.headers.get('origin')
+#     if origin:
+#         acrpn = request.headers.get('access-control-request-private-network')
+#         acrm = request.headers.get('access-control-request-method')
+#         log.debug(f"PNA_DEBUG REQ: method={request.method} path={request.url.path} remote={getattr(request.client, 'host', None)} origin={origin} acr_method={acrm} acr_private_network={acrpn}")
+
+#     response = await call_next(request)
+
+#     if origin:
+#         # collect CORS/PNA-related response headers for visibility
+#         interesting = {k: v for k, v in response.headers.items() if k.lower().startswith('access-control-') or k.lower() == 'vary'}
+#         log.debug(f"PNA_DEBUG RESP: status={response.status_code} headers={interesting}")
+
+#     return response
+
 # Register utility middleware from external module
 app.middleware('http')(process_time_middleware)