[HelpHub] Feedback on htaccess

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Issue Description

Originally reported by https://profiles.wordpress.org/bachsau/

I don’t see a reason for the much more complex ruleset of a 3.5+ SubDomain multisite. They work quite well with the basic rules, and from what I can read out of the rules, the effective differences are minor, such as not redirecting missing files inside wp-* directories to index.php.

Originally reported by https://profiles.wordpress.org/ov3rfly/

Examples are incomplete/corrupt.

The IfModule lines are missing around rewriterules.

This has been reported several times before in last years, why is it not fixed?

Originally reported by https://profiles.wordpress.org/abitofmind/

Below the Basic WP .htaccess it would be great to have an explanation which directive/rule does what and where not obvious explain why this is necessary.

In particular, why is this necessary?
RewriteRule .* – [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

I guess it is there to ensures compatibility if PHP is run as FCGI and not a PHP module of the webserver?

Found this non WordPress-specific explanation at:
https://stackoverflow.com/questions/4947548/what-does-this-this-http-authorization-rewriterule-do/13271358#13271358

URL of the Page with the Issue

https://wordpress.org/documentation/article/htaccess/

Section of Page with the issue

Why is this a problem?

Suggested Fix

[github-actions]

Heads up @lucprincen @javiercasares - the "advanced administration" label was applied to this issue.

[zzap]

Heads up @WordPress/docs-issues-coordinators, we have a new issue open. Time to use 'em labels.