actually we having MW 1.31 running at our company but occur errors in the header of the page once we using the preview function.
It says: Warning: Parameter 1 to CKeditor_MediaWiki::onEditPageBeforePreviewText()
Using the latest Version of Wysiwyg and in localSettings.php activated following lines as mentioned on your wiki page
//MW>1.25 and version of WYSIWYG = 1.5.6_0
wfLoadExtension ( 'WYSIWYG' );
wfLoadExtension ( 'WikiEditor' );
Don´t know what to do or how to solve the issue.
There is no guideline and no working WYSIWYG Editor extension available.
Thanks for support