By alexpott on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
8.7.x
Introduced in version: 
8.7.0-alpha1
Issue links: 
https://www.drupal.org/node/3001542
Description: 

With the update to Guzzle 6.3 Drupal's http_client service now supports empty headers.

$request_options = [
  RequestOptions::HEADERS => [
    'content-disposition' => '',
  ],
];
$client->request('GET', 'http://www.drupal.org', $request_options);

Before

The code above would not sent the content-disposition header.

After

A content-disposition header will be sent with an empty value.