Document your templates and include reminders or instructions for yourself and others who work with the system that aren’t available to anyone who "views source" on the page.
Syntax
<iscomment>
...
</iscomment>
The alternative usage of the following has been deprecated as of 03/06/2009.
<!--- --->
note: We recommend that you use the standard <iscomment> syntax. However, using this syntax doesn't cause a failure.
Purpose
Anything enclosed in an <iscomment>... </iscomment> structure isn't parsed by the template processor and doesn't appear in the generated storefront page.
HTML comments created by surrounding the text with the character strings <!--and --> are now deprecated. This is because this commenting method provides no confidentiality. Anyone can use a browser's View > Source menu to see the HTML code, including the comments.
Example
<iscomment>
This comment isn't sent to the browser and isn't visible in the page source.
</iscomment>