Problem/Motivation

When you want to create a new Alertbox instance we get the following error

Failed to start the session because headers have already been sent by "/var/www/html/vendor/symfony/http-foundation/Response.php" at line 431.

Steps to reproduce

Go to admin/content/block add new alertbox block. The block is created but when you visit admin/structure/block you don't see it.

Issue fork alertbox-3575607

Command icon Show commands

Start within a Git clone of the project using the version control instructions.

Or, if you do not have SSH keys set up on git.drupalcode.org:

Comments

p-neyens created an issue. See original summary.

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New patch file

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Assigned: p-neyens » Unassigned
Status: Active » Fixed

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Status: Fixed » Closed (fixed)

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