Fix CORS

backend/src/utils/config.py

@@ -10,7 +10,8 @@ class Settings(BaseSettings):
     DATABASE_URL: str = "postgresql://audio_user:audio_password@localhost:5432/audio_classifier"
 
     # API Configuration
-    CORS_ORIGINS: str = "http://localhost:3000,http://127.0.0.1:3000"
+    # Comma-separated list of allowed origins, or use "*" to allow all
+    CORS_ORIGINS: str = "*"
     API_HOST: str = "0.0.0.0"
     API_PORT: int = 8000
 
@@ -33,7 +34,13 @@ class Settings(BaseSettings):
 
     @property
     def cors_origins_list(self) -> List[str]:
-        """Parse CORS origins string to list."""
+        """Parse CORS origins string to list.
+
+        If CORS_ORIGINS is "*", allow all origins.
+        Otherwise, parse comma-separated list.
+        """
+        if self.CORS_ORIGINS.strip() == "*":
+            return ["*"]
         return [origin.strip() for origin in self.CORS_ORIGINS.split(",")]