There is a {{ dump(attributes) }} in the template toolbar-primary.html.twig.

Which causes you to get dumped output to the UI similar to :
object(Drupal\Core\Template\Attribute)#8082 (1) { ["storage":protected]=> array(0) { } }

I've removed this and attached a patch.

Comments

Dennis Cohn created an issue. See original summary.

dennis cohn’s picture

dennis cohn’s picture

Status: Active » Needs review
philosurfer’s picture

Issue summary: View changes
Status: Needs review » Reviewed & tested by the community

I have updated description to help others see this issue and RTBC'd :)

jakubhnilicka’s picture

Status: Reviewed & tested by the community » Closed (works as designed)

Fixed in alpha6 release.

jakubhnilicka’s picture

Status: Closed (works as designed) » Fixed

Status: Fixed » Closed (fixed)

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