iRule Event Order - HTTP

HTTP:: commands aren't necessarily available when XML_CONTENT_BASED_ROUTING event fires. Whilst F5 documentation is a bit scarce on XML CBR, I know from experience that simple things like HTTP::respond don't work. For example, the following iRule fragment will generate a "command is not valid in current event context" error:

when XML_CONTENT_BASED_ROUTING { HTTP::respond 302 Location "http://www.domain.org" }