This PR changes the default handling of undefined expressions so that the original reference is rendered in the compiled HTML, instead of the string undefined.
This is particularly useful when dealing with ESP placeholders/merge tags, meaning that you can now just do this:
<a href="{{ unsubscribe_url }}">Unsubscribe</a> from these emails.
... and have it output exactly like that - no need to ignore the expression with @{{ unsubscribe_url }}.
This PR changes the default handling of
undefinedexpressions so that the original reference is rendered in the compiled HTML, instead of the stringundefined.This is particularly useful when dealing with ESP placeholders/merge tags, meaning that you can now just do this:
... and have it output exactly like that - no need to ignore the expression with
@{{ unsubscribe_url }}.