diff --git a/vle_specific.php b/vle_specific.php index fbd4e7ff261399e0bafa532b78044a6017d579c5..d62e8172170c4e15db9a25b0747d2729a9bd7f47 100644 --- a/vle_specific.php +++ b/vle_specific.php @@ -204,7 +204,7 @@ function stack_get_mathjax_url(): string { $urlstring = substr($mathjaxconfigurl, 0, $questionpos); parse_str($querystring, $queryparams); $queryparams = array_merge(['config' => 'TeX-AMS-MML_HTMLorMML'], $queryparams); - $querystring = http_build_query($queryparams, null, '&', PHP_QUERY_RFC3986); + $querystring = http_build_query($queryparams, '', '&', PHP_QUERY_RFC3986); $url = $urlstring . '?' . $querystring; } else { $url = $mathjaxconfigurl . '?config=TeX-AMS-MML_HTMLorMML';