From 8e92b60178c34f785d6bcdd4634345e8937605b1 Mon Sep 17 00:00:00 2001
From: Urban Müller
Date: Mon, 3 Aug 2020 22:05:25 +0200
Subject: do not send empty headers

---
 it_url.class | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'it_url.class')

diff --git a/it_url.class b/it_url.class
index 712074d..318168c 100644
--- a/it_url.class
+++ b/it_url.class
@@ -172,13 +172,13 @@ static function _default_headers($url, $p)
 	if ((!it::is_devel() || EDC('subreqcheck')) && $p['url'] && !$p['headers']['Accept-Language'] && T_lang() != T_defaultlang() && $search_subrequest && !it::match('\blogin\.|banner\.html|machines\.txt|mbtiles\.php|/itjs/|/images/|\.(de|fr|en|it)(\.js|\.html|\.txt|\.php|\.ics|\.pdf|\.json|\.csv|\.gif|\.jpg|\.png)', $p['url']))
 		it::error(['title' => "Subrequest without language override", 'body' => [ $p ]]);
 
-	$headers = [
+	$headers = array_filter(
 		'Host' => $url->realhostname . $url->explicitport,
 		'User-Agent' => "Mozilla/5.0 (compatible; ITools; Chrome/70.0.3538.102 Safari/537.36 Edge/18.19582)",
 		'Accept-Language' => $p['headers']['Accept-Language'] ?: ($search_subrequest ? T_defaultlang() : T_lang()), # can prevent loading of it_text
 		'Referer' => it::match('([-\w]+\.\w+)$', $url->hostname) == it::match('([-\w]+\.\w+)$', $_SERVER['HTTP_HOST']) ? it_url::absolute(U($_GET)) : null,
 		'X-Ultra-Https' => $_SERVER['HTTPS'],
-	];
+	);
 	if (is_int($p['filemtime']))
 		$headers['If-Modified-Since'] = date("r", $p['filemtime']);
 	return $headers;
-- 
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