Pretty URLs fail to work if overwrite.cli.url has no trailing slash for the no subfolder case

[zapek]

Steps to reproduce

1. install nextcloud as webserver root
2. try to get Pretty URLs working

Expected behaviour

Pretty URLs are working

Actual behaviour

sudo -u www-data php /var/www/nextcloud/occ maintenance:update:htaccess
returns
Error updating .htaccess file, not enough permissions or "overwrite.cli.url" set to an invalid URL?

Server configuration

Operating system: Ubuntu 18.04

Web server: Apache

Database: MySQL

PHP version: 7.2

Nextcloud version: (see Nextcloud admin page) 14.0

Updated from an older Nextcloud/ownCloud or fresh install: fresh

Where did you install Nextcloud from: nextcloud.com

If you follow the documentation here:
https://docs.nextcloud.com/server/14/admin_manual/installation/source_installation.html#pretty-urls

'overwrite.cli.url' => 'https://example.org',
'htaccess.RewriteBase' => '/',

This example is wrong, it should be https://example.org/ (with a trailing '/').

Otherwise in lib/private/Setup.php in updateHtaccess(), the parse_url($webRoot, PHP_URL_PATH) fails as there's no URL path.

[nextcloud-bot]

GitMate.io thinks possibly related issues are #9350 (Change URL with overwrite.cli.url), #10678 (Pretty urls don't work after occ upgrade), #9634 (Kerberos SSO fails after configuring pretty urls), #6271 (Theming kills pretty URL), and #7547 ([Clarification Request or Bug] Pretty Urls does not work for me).

[kesselb]

See also #10678

[zapek]

Indeed this is the same as #10678. Closing then.