How to Canonicalise all filter pages (URL parameters) to the main category

[brandonegroup]

Hi guys,

I am working on an e-commerce site that's running in Shopify.

I noticed that the filter pages do not have canonical tags pointing to their respective main categories.

I doubt that the action needed is to canonicalise each filter pages to the main category as it would take time (there are a lot of filter URLs involved).

Do you know any technical coding to do in Shopify to have all filter pages canonicalise to its main category?

Keen to hear from you.

Cheers