allow anonymous get to id cache for discovery

Author: sampsapenna

swift_browser_ui/common/common_middleware.py

@@ -65,8 +65,11 @@ async def handle_validate_authentication(
     handler: swift_browser_ui.common.types.AiohttpHandler,
 ) -> aiohttp.web.Response:
     """Handle the authentication of a response as a middleware function."""
+    # TODO: better configuration for conditional skipping of anonymous endpoints
     if request.path == "/health":
         return await handler(request)
+    if "/ids/" in request.path and request.method in {"GET", "OPTIONS"}:
+        return await handler(request)
 
     try:
         signature = request.query["signature"]