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-rw-r--r--classes/urlhelper.php5
1 files changed, 4 insertions, 1 deletions
diff --git a/classes/urlhelper.php b/classes/urlhelper.php
index 29a9528a8..57046b600 100644
--- a/classes/urlhelper.php
+++ b/classes/urlhelper.php
@@ -26,6 +26,7 @@ class UrlHelper {
/** @var string */
static $fetch_last_modified;
+
/** @var string */
static $fetch_effective_url;
@@ -68,6 +69,8 @@ class UrlHelper {
$rel_parts = parse_url($rel_url);
+ if (!$rel_url) return $base_url;
+
/**
* If parse_url failed to parse $rel_url return false to match the current "invalid thing" behavior
* of UrlHelper::validate().
@@ -107,7 +110,7 @@ class UrlHelper {
$rel_parts['host'] = $base_parts['host'] ?? "";
$rel_parts['scheme'] = $base_parts['scheme'] ?? "";
- if (isset($rel_parts['path'])) {
+ if ($rel_parts['path'] ?? false) {
// we append dirname() of base path to relative URL path as per RFC 3986 section 5.2.2
$base_path = with_trailing_slash(dirname($base_parts['path']));