Updated Download.php

Author: Shikha Mishra

app/code/Magento/Downloadable/Helper/Download.php

@@ -259,7 +259,7 @@ public function setResource($resourceFile, $linkType = self::LINK_TYPE_FILE)
         /**
         * check header for urls
         */
-        if ($this->_linkType === self::LINK_TYPE_URL) {
+        if ($linkType === self::LINK_TYPE_URL) {
             $headers = array_change_key_case(get_headers($this->_resourceFile, 1), CASE_LOWER);
             if(isset($headers['location'])){
                 $this->_resourceFile  = is_array($headers['location']) ? current($headers['location']):