WordPress + AlwaysData + HTTPS = #win

functions.php

<?php

add_action('init', 'alwaysdata_ssl');

/**
 * Enables proper HTTPS detection with WordPress and Alwaysdata
 */
function alwaysdata_ssl()
{
	if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https')
	{
		$_SERVER['HTTPS'] = 'on';
		$_SERVER['SERVER_PORT'] = 443;
	}
}