Make collections work locally. See also https://www.mediawiki.org/wiki/User:Polishdeveloper/BetaCluster_Restbase_access_on_localhost

patch.diff

diff --git a/includes/BookRenderingMediator.php b/includes/BookRenderingMediator.php
index 9d30550..400aec7 100644
--- a/includes/BookRenderingMediator.php
+++ b/includes/BookRenderingMediator.php
@@ -192,10 +192,7 @@ class BookRenderingMediator implements LoggerAwareInterface {
 			'electron' => ElectronVirtualRestService::class,
 		];
 		foreach ( $modules as $module => $class ) {
-			if ( !isset( $config['modules'][$module] ) ) {
-				throw new Exception( "VirtualRESTService module $module is not configured propely" );
-			}
-			$params = $config['modules'][$module];
+			$params = [];
 			if ( isset( $config['global'] ) ) {
 				$params += $config['global'];
 			}
diff --git a/includes/DataProvider.php b/includes/DataProvider.php
index 7e5cd5c..7c54cc6 100644
--- a/includes/DataProvider.php
+++ b/includes/DataProvider.php
@@ -59,10 +59,8 @@ class DataProvider implements LoggerAwareInterface {
 		$linkBatch->execute();
 
 		$requests = array_map( function ( array $item, Title $title ) {
-			$url = '/restbase/local/v1/page/html/' . wfUrlencode( $title->getPrefixedDBkey() );
-			if ( isset( $item['revision'] ) ) {
-				$url .= '/' . $item['revision'];
-			}
+			$url = 'http://localhost:8080/api/rest_v1/page/html/' . wfUrlencode( $title->getPrefixedDBkey() );
+
 			return [
 				'method' => 'GET',
 				'url' => $url,