Fixes

src/Headers.php

@@ -841,7 +841,7 @@ public function links(array $links = [], string $type = 'header', bool $strictRe
             }
         } else {
             if ($type === 'header') {
-                header('Link: '.implode(', ', $linksToSend), false);
+                header('Link: '.preg_replace('/[\r\n]/i', '', implode(', ', $linksToSend)), false);
                 return $this;
             } else {
                 return implode("\r\n", $linksToSend);

src/Sharing.php

@@ -921,11 +921,16 @@ public function proxyFile(string $url, string $cacheStrat = ''): void
         #Cache headers object
         $headers = (new \Simbiat\http20\Headers);
         #Get headers
-        $headersData = get_headers($url, context: stream_context_create(['http' => [
+        $headersData = @get_headers($url, context: stream_context_create(['http' => [
             'method' => 'HEAD',
             'follow_location' => 1,
             'protocol_version' => 2.0
         ]]));
+        #Check that we did get headers
+        if (!is_array($headersData)) {
+            #Failed to get headers, meaning we most likely will not be able to get the content as well
+            $headers->clientReturn('500', true);
+        }
         #Cache-Control flag
         $cache = false;
         #Send the headers from remote server
@@ -948,7 +953,8 @@ public function proxyFile(string $url, string $cacheStrat = ''): void
             }
         }
         #Open streams
-        $url = fopen($url, 'rb', context: stream_context_create(['http' => [
+        #Supress warning for $url, since connection can be refused for some reason and it still may be "normal"
+        $url = @fopen($url, 'rb', context: stream_context_create(['http' => [
             'method' => 'GET',
             'follow_location' => 1,
             'protocol_version' => 2.0