WordPress: Redirect users with 'read' capability (e.g. Subscribers) to Dashboard instead of Profile.

functions.php

<?php
/**
 * Redirect users with 'read' capability (e.g. Subscribers) to Dashboard instead of Profile.
 *
 * @link https://gist.github.com/cliffordp/35d74c3bceec9fbd10547b5d1ba988e5 This snippet.
 * @link https://core.trac.wordpress.org/ticket/44960 Hopefully won't need this snippet in the future.
 * @link https://github.com/WordPress/WordPress/blob/4.9.8/wp-login.php#L965 The code we are overriding.
 *
 * @param string $location
 *
 * @return string
 */
add_filter(
	'wp_redirect', function ( $location ) {
	if (
		admin_url( 'profile.php' ) === $location
		&& '/wp-login.php' === substr( $_SERVER['REQUEST_URI'], 0, 13 )
		&& ! empty( $_POST['wp-submit'] )
		&& ! empty( $_POST['redirect_to'] )
		&& admin_url() === $_POST['redirect_to']
	) {
		$location = admin_url();
	}

	return $location;
} );