Logstash crashes if remote server for HTTP plugin is temporarily not available

When my REST Service consuming log events from the HTTP plugin is temporarily not available, logstash crashes and does not deliver any further log messages even when the remote REST service is available again.

It is acceptable if logstash looses log messages while the remote service is not available, but as soon as the remote service is available again it should continue delivering log events just normal without the need to restart logstash.