Drupal 8.x

I am getting a header error in all pages. More specifically:

Warning: Header may not contain more than a single header, new line detected in Symfony

Kind of lost at what is causing this problem. Haven't been able to figure it out so far. Any help or direction is greatly appreciated.

I put a slideshow in the highlighted region. I made it with views... . After that I changed in the Adaptive theme the global width of the highlighted region in "100vw".

When I go to the site it looks good but when I change the size of the browser-window the slider doesn't responds. I stays in the same width, it does not change when I change the size. I'm wondering how to fix this... ?

In order to modify the length of a file field description field I put the following line to settings.php:

$config['file.settings']['description']['length'] = 512;

Now I want to do the same for the link field. How can I change the max length of the link text (without patching the module)?

I think the problem is that FileWidget.php gets the length from the configuration

'#maxlength' => $config->get('description.length')

whereas it is hardcoded in LinkWidget.php:

Hey,

I have a site I am developing on Drupal 8.2.5. I upgraded manually from 8.2.4 to 8.2.5, when it came out, with no problem.

Today I went to upgrade from 8.2.5 to 8.2.6.

Same procedure as before following the instructions on Drupal upgrade.txt link.

After running update.php - the front page of the site appears - but all others - INCLUDING the back-end returns a 404 Not Found Page.

Hello,

We log all failed log in attempts on our drupal sites and then forward these onto graylog, i'm having at look at our current module and trying to update everything for drupal 8.

In drupal 6 / 7 we had something like this

Is it possible to use configuration management to share configuration for specific configurable items using a multi-site setup?