Version 5
supported
Debugging templates
Source code comments
If there is a problem with the rendered html your page is outputting you may need to track down a template or two. The template engine can help you along by displaying source code comments indicating which template is responsible for rendering each block of html on your page.
---
Only:
environment: 'dev'
---
SilverStripe\View\SSViewer:
source_file_comments: true