### The Problem:
If you use `{{ some_item|striptags('<a><p><br>') }}`, then Drupal will render your content with the allowed tags URL encoded so that they appear on the page (rather than being the lovely, functional HTML they were *intended* to be...)

### The Solution:
Use `{{ some_item|striptags('<a><p><br>')|raw }}`, which tells Drupal to go ahead and render the specified tags (such as paragraphs or anchors) as actual tags, rather than translate them to text.