Unknown Liquid filters fail silently

[kleinfreund]

The following works with or without a cssmin filter being defined.

example.liquid:

{% capture testcss %}
  {% include css/test.css %}
{% endcapture %}
<style>{{ testcss | cssmin | safe }}</style>

When a filter is not defined, an error should be produced.

(as seen in Quick Tip #005—Super Simple CSS Concatenation)

[zachleat]

I did make a fair number of changes to the error reporting stuff in 0.5.4, this is what it reports in Nunjucks:

But you’re absolutely right that it fails silently in Liquid templates.

[zachleat]

Ah, looks like there is a strict_filters option: https://github.com/harttle/liquidjs#options

[zachleat]

With this option enabled:

I added this to the Liquid setLiquidOptions documentation example and created another issue to change this to true by default when we go 1.0.

https://www.11ty.io/docs/languages/liquid/

Closing this one—follow along at #222 for the default change—thanks!

[zachleat]

#222 is shipping with 1.0