Metrics will be collected for this message.
The #SoupAuthManager should not use the credentials cache for this message, neither to use cached credentials to automatically authenticate this message nor to cache the credentials after the message is successfully authenticated. This applies to both server and proxy authentication. Note that #SoupMessage::authenticate signal will be emitted, if you want to disable authentication for a message use soup_message_disable_feature() passing #SOUP_TYPE_AUTH_MANAGER instead.
The message is considered idempotent, regardless its #SoupMessage:method, and allows reuse of existing idle connections, instead of always requiring a new one, unless #SOUP_MESSAGE_NEW_CONNECTION is set.
Requests that the message should be sent on a newly-created connection, not reusing an existing persistent connection. Note that messages with non-idempotent #SoupMessage:methods behave this way by default, unless #SOUP_MESSAGE_IDEMPOTENT is set.
The session should not follow redirect (3xx) responses received by this message.
Various flags that can be set on a #SoupMessage to alter its behavior.