I have added the following filter to remove a division in HTML but it didn't work
s|(div class="tagcloud" id="tagcloud">.+?</div)||sg
Can you please help?
Please provide the source of the HTML code you are trying to filter (or an URL).
Please also be more specific about what exactly you added to your filter and action files. What you cite as "filter" is just a pcrs command (no filter header).