cssnano Files

Feature Changes

• feat(postcss-normalize-url): stop rewriting URLs

The plugin only changes the url() token (unquoting, whitespace, escaping) and keeps the URL byte-identical. It no longer removes dot segments or duplicate slashes, decodes percent-escapes, removes default ports or strips the trailing dot of host names, because these are not equivalent for every server or bundler. It keeps whitespace inside a quoted @namespace URL as well, because the namespace name is an identifier compared character by character rather than a URL that gets fetched.

• feat(cssnano-preset-default): remove postcss-svgo from the preset

The presets no longer run postcss-svgo; run it before cssnano or optimize SVG assets with the SVGO cli instead. A svgo option is now ignored. The output changes for CSS with inline SVG data URIs, and for CSS with URLs that postcss-normalize-url used to rewrite (see the postcss-normalize-url changeset).

Patch Changes

• Always convert between cm and mm, and convert q to cm or mm, since metric units relate by exact decimal factors. q is never the output unit.