Summary

PostCSS 8 was released. It added a new plugin API. Right now Gatsby does not support PostCSS 8 plugins.

Updating postcss-loader and adding postcss to dependencies for gatsby-plugin-postcss will fix the problem.

PostCSS 8 changelog does not have breaking changes related to Gatsby only removing Node.js 6 and 8 support

Related PR: #6331
Suggested by @pimlie

When trailing slash handling is enforced (in any manner), it'd be great to have two things for improved DX:

Nuxt Link adaption

No matter how you input the links in your Nuxt link (be it as an object via named routes or via string), the component should enforce the set up trailing slash handling (adding or removing the slashes as needed).

U

Currently you have to click on the devtools icon and then toggle errors button.

In Multi-table query (db_multi_table_query.php) alias show the same alias for all columns

As per this PR <dl> structures don't render very nicely. The alternative is to use headings as requested in the PR. That's not semantic.

• There seems to be a bug when navigating to the catch_all route but not contributors, ex. localhost:7878/test. The current implementation panics using both rocket and actix as server.
• Rocket currently has 404 for unknown routes and this should be added to the actix example as well.