Suppress breadcrumb when on group_domain group canonical pages

+++ b/src/Breadcrumb/GroupBreadcrumbBuilder.php
@@ -0,0 +1,40 @@
+    // No breadcrumb.
+    $breadcrumb = new Breadcrumb();
+    $breadcrumb->addCacheContexts(['route']);
+    return $breadcrumb;

Self review - does this need the group domain cache context too now?

I think it may be covered in GroupDomainServiceProvider::alter():
$renderer_config['required_cache_contexts'][] = 'group_domain';
But I think you know better how it works exactly ;)

      if ($domain_group->id() == $group->id()) {

NULL check required.

Committed with that additional check.
Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.