Trim siteurl and homeurl

[thamaraiselvam]

I have seen some sites accidently put new line or space end of the siteurl and home in the wp_options
So whenever WordPress defines constants like WP_CONTENT_URL its not trimming the siteurl
/wp-includes/default-constants.php

function wp_plugin_directory_constants() {
        if (!defined('WP_CONTENT_URL')) {
                define('WP_CONTENT_URL', get_option('siteurl') . '/wp-content');
        }

If siteurl has the new line in the end and plugin_url()

gives the result as follow

https://example.com
/wp-content/plugins/myplugin/

As javascript is not supporting multiline string so it just broke my UI.

[thamaraiselvam]

This sample patch but it should be done everywhere

[thamaraiselvam]

Also if siteurl and home keys has the new line or space at the end WordPress never shows any warnings or error

[SergeyBiryukov]

Related: #10970, #18769.