EVOLUTION-MANAGER
Edit File: HeaderFactory.php
<?php namespace DuplicatorPro\Guzzle\Http\Message\Header; defined("ABSPATH") or die(""); use DuplicatorPro\Guzzle\Http\Message\Header; /** * Default header factory implementation */ class HeaderFactory implements HeaderFactoryInterface { /** @var array */ protected $mapping = array( 'cache-control' => 'DuplicatorPro\Guzzle\Http\Message\Header\CacheControl', 'link' => 'DuplicatorPro\Guzzle\Http\Message\Header\Link', ); public function createHeader($header, $value = null) { $lowercase = strtolower($header); return isset($this->mapping[$lowercase]) ? new $this->mapping[$lowercase]($header, $value) : new Header($header, $value); } }