require_once "$IP/includes/compat/normal/UtfNormalUtil.php";
+
+$ps_validation = Profiler::instance()->scopedProfileIn( $fname . '-validation' );
+
+// T48998: Bail out early if $wgArticlePath is non-absolute
+if ( !preg_match( '/^https?:\/\/|\//', $wgArticlePath ) ) {
+ throw new FatalError(
+ 'If you use a relative URL on $wgArticlePath, it must start ' .
+ 'with a slash (/).<br><br>See ' .
+ '<a href="https://www.mediawiki.org/wiki/Manual:$wgArticlePath">' .
+ 'https://www.mediawiki.org/wiki/Manual:$wgArticlePath</a>'
+ );
+}
+
+Profiler::instance()->scopedProfileOut( $ps_validation );
+
$ps_default2 = Profiler::instance()->scopedProfileIn( $fname . '-defaults2' );
if ( $wgCanonicalServer === false ) {