Missing Breadcrumb Navigation for collapsed subprocesses in bpmn.js + Angular Integration

Hello, i have integrated bpmn-js with an angular application using the example as a reference. I’ve noticed two issues related to collapsed subprocesses.

  1. No breadcrumb navigation appears when drilling down into subprocesses.
    Bildschirmfoto 2025-05-20 um 17.06.33

  2. The drilldown button is always visible and looks different compared to the one in the bpmn.io demo viewer
    Bildschirmfoto 2025-05-20 um 17.06.25

This behavior also appears in the referenced Angular example project. What do I have to do to enable breadcrumb navigation for collapsed subprocesses?

Thanks in advance! :raised_hands:

Add bpmn-js styles to angular.json:

"styles": [
  "node_modules/bpmn-js/dist/assets/diagram-js.css",
  "node_modules/bpmn-js/dist/assets/bpmn-js.css",
  "node_modules/bpmn-js/dist/assets/bpmn-font/css/bpmn.css",
  "src/styles.css"
],
1 Like

Thanks, that solved it!