Quoting bugs

Hello, there is a little bug in the plugin. 1) In referrer policy, values are extra quoted For example in chrome it says: Failed to set referrer policy: The value ‘”origin”‘ is not one of ‘no-referrer’, ‘no-referrer-when-downgrade’, ‘origin’, ‘origin-when-cross-origin’, ‘same-origin’, ‘strict-origin’, ‘strict-origin-when-cross-origin’, or ‘unsafe-url’. The referrer policy has been left unchanged. The solution probably is to replace this: return $htaccess ? ‘Referrer-Policy “‘.$policy.'”‘ : ‘Referrer-Policy: “‘.$policy.'”‘; by this: return $htaccess ? ‘Referrer-Policy ‘.$policy : ‘Referrer-Policy: ‘.$policy; in core/objects/core.headers.php file 2) http headers values should not be quoted. I. e. the lattter one is correct. I think the first might not be understood strict-transport-security: “max-age=31536000” strict-transport-security: max-age=31536000 3) Also, how about adding “preload” option for “strict-transport-security” header?