Merge pull request #7816 from jdarwood007/ServerProto

SimpleMachines · Jul 31, 2023 · 05b3e67 · 05b3e67
2 parents 84e74d0 + 3c2c400
commit 05b3e67
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Sources/Subs.php b/Sources/Subs.php
@@ -8170,7 +8170,7 @@ function send_http_status($code, $status = '')
  503 => 'Service Unavailable',
  );
 
- $protocol = preg_match('~^\s*(HTTP/[12]\.\d)\s*$~i', $_SERVER['SERVER_PROTOCOL'], $matches) ? $matches[1] : 'HTTP/1.0';
+ $protocol = !empty($_SERVER['SERVER_PROTOCOL']) && preg_match('~^\s*(HTTP/[12]\.\d)\s*$~i', $_SERVER['SERVER_PROTOCOL'], $matches) ? $matches[1] : 'HTTP/1.0';
 
  // Typically during these requests, we have cleaned the response (ob_*clean), ensure these headers exist.
  require_once($sourcedir . '/Security.php');