Honour assets_base_urls if used

ConfigurationBuilder.php

<?php
    /**
     * Get the RequireJS configuration options.
     * @return array
     */
    public function getConfiguration()
    {
        if ($this->useControllerForAssets && $this->container->isScopeActive('request')) {
            $baseUrl = $this->container->get('request')->getBaseUrl();
            $baseUrl = \ltrim($baseUrl, '/');
        } else {
            $baseUrl = $this->container->get('templating.helper.assets')->getUrl(\ltrim($this->baseUrl, '/'));
            // remove ?version from end of URL
            if (($p = strpos($baseUrl, '?')) !== false) {
                $baseUrl = substr($baseUrl, 0, $p);
            }
        }

        $config = array(
            'baseUrl' => $baseUrl,
            'locale' => $this->translator->getLocale(),
        );
        
        if ($this->paths !== null) {
            $config['paths'] = $this->paths;
        }
        
        return array_merge($config, $this->additionalConfig);
    }