Feature: #67236 - Added "allowedTags" argument to f:format.stripTags ViewHelper

See forge#67236

Description

The argument allowedTags containing a list of HTML tags which will not be stripped can now be used on f:format.stripTags. Tag list syntax is identical to second parameter of PHP function strip_tags.

Impact

New ViewHelper argument (string) allowedTags becomes available, allowing passing the tag list as second parameter to strip_tags.