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We are using Drupal Core v8.6.2 and we have a url variable in our node--page.html.twig template. While using ksm() and {{ kint() }} we are finding that if we use hook_preproces_node($variables) that the url is inserted into the $variables array. Unfortunately this url is relative, but we need an absolute URL in our twig template.

How can we convert this url variable from our node--page.html.twig template to be absolute?

node--page.html.twig

I have reduced the comments section to only include comments that were relevant to the question.

{#
/**
 * @file
 * Theme override to display a node.
 *
 * Available variables:
 * - node: The node entity with limited access to object properties and methods.
 * - label: The title of the node.
 * - content: All node items. Use {{ content }} to print them all,
 * - url: Direct URL of the current node.
 * - attributes: HTML attributes for the containing element.
 * @see template_preprocess_node()
 *
 */
#}

<a href="{{ url }}> {# url is the variable we want to be absolute #}
  <h2> {{ label }} </h2>
  {{ content.body }}
</a>
  • How are you creating this variable? – Kevin Dec 31 '18 at 18:28
  • @Kevin I added more lines from the comment's section of the twig template in the question. It is a copy of the node.html.twig from the classy node.html.twig template. So nothing I generated myself. – usernameabc Dec 31 '18 at 18:42
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You can use hook_preprocess_node to passe base_url to your twig like the following:

function mymodule_preprocess_node(&$variables) {
  global $base_url;
  $variables['base_url'] = $base_url;
}

in node--page.html.twig you will get the absolute url by:

{{ base_url ~ url }} 
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