[TYPO3-ttnews] How to Stop Full Article Feeds for RSS2.0

[Errol Mars]

I use this setting (subheader_stdWrap.crop = 150 | ... |1) as shown in 
the manual to limit the news feed but the full article is still viewable 
by feed readers. How do I shop the full article from being send out?

 From the manual but not working properly to limit full article feed.

displayXML {

     title_stdWrap.htmlSpecialChars = 1
     title_stdWrap.htmlSpecialChars.preserveEntities = 1
     subheader_stdWrap.stripHtml = 1
     subheader_stdWrap.htmlSpecialChars = 1
     subheader_stdWrap.htmlSpecialChars.preserveEntities = 1
     subheader_stdWrap.crop = 150 | ... | 1
     subheader_stdWrap.ifEmpty.field = bodytext
     xmlLastBuildDate = 1

   }