Add the possibility for pre-processors

[flosch]

To accomplish things like:

• Minimizing and compaction of multiple CSS or javascript files on the fly
• Minimzing (for example remove unnecessary whitespaces/newlines)/rewriting the HTML template
• ...?

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[flosch]

Are there any JS/HTML compressors/minimizers or other tools which might be useful for pongo2 in that regard?

[digitalcrab]

Hm ... good idea, but in my case it doesn't works, we use separated minifitation tool right before deploy on production.

[ahall]

I used to be on this wagon before starting to use ngx_pagespeed which does this all and one less thing for me to worry about.