diff --git a/includes/WebRequest.php b/includes/WebRequest.php
index 739340c3c4a..3bdf6452b6a 100644
--- a/includes/WebRequest.php
+++ b/includes/WebRequest.php
@@ -656,14 +656,11 @@ class WebRequest {
 		}
 
 		if( $base[0] == '/' ) {
-			if( isset( $base[1] ) && $base[1] == '/' ) { /* More than one slash will look like it is protocol relative */
-				return preg_replace( '!//*!', '/', $base );
-			}
-
-			return $base;
+			// More than one slash will look like it is protocol relative
+			return preg_replace( '!^/+!', '/', $base );
 		} else {
 			// We may get paths with a host prepended; strip it.
-			return preg_replace( '!^[^:]+://[^/]+/!', '/', $base );
+			return preg_replace( '!^[^:]+://[^/]+/+!', '/', $base );
 		}
 	}