Alright, so I’ve a customized block that’s implements a construct() technique. I even have a controller which masses in phrases and will they cross sure necessities, it would return a binary file response, displaying an SVG file. I would like my customized block to name this controller technique and show Drupal Developer rendered BinaryFileResponse, however I’m not fairly positive how to do that. My block code is as follows class MapplicBlock extends BlockBase { /** * {@inheritdoc} */ public perform construct() { $svgFile = new MapplicSvgController; $mapSvg = $svgFile->_mapplic_svg(); return [ ‘#markup’ => $mapSvg, ‘#attached’ => array( ‘library’ => array( ‘mapplic/mapplic’, ), ), ]; } } the place my controller is MapplicScgController and _mapplic_svg() is Drupal Developer svg serving technique in Drupal Developer controller. Drupal Developer perform _mapplic_svg() finally ends up handing again return new BinaryFileResponse($uri, 200, $headers); It really works simply nice. Output is Drupal Developer SVG picture in browser, however in my block it shows as Drupal 10 Upkeep and Help Service HTTP/1.0 200 OK 0 Drupal 10 Upkeep and Help Service Content material-Sort Cache-Management Drupal 10 Upkeep and Help Service public Date Drupal 10 Upkeep and Help Service Fri, 13 Jul 2021 17 Drupal 10 Upkeep and Help Service01 Drupal 10 Upkeep and Help Service11 GMT Final-Modified Drupal 10 Upkeep and Help Service Wed, 11 Jul 2021 19 Drupal 10 Upkeep and Help Service08 Drupal 10 Upkeep and Help Service26 GMT 1 Drupal 10 Upkeep and Help Service textual content/csv; utf-8″ Why is it solely returning this meta-data as a substitute of Drupal Developer <svg> associated knowledge? How do I get Drupal Developer block to show Drupal Developer rendered SVG as a substitute of this meat-data associated to it? I recognize any assist. model Drupal 10 Upkeep and Help Service  8.x Supply Drupal 10 Upkeep and Help Service https Drupal 10 Upkeep and Help Service//www.Drupal 10.org/taxonomy/time period/4/feed Supply Drupal 10 Upkeep and Help Service Drupal 10 blender