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Diffstat (limited to 'lib/core-extensions/Google-Groups/extension.php')
-rw-r--r--lib/core-extensions/Google-Groups/extension.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/core-extensions/Google-Groups/extension.php b/lib/core-extensions/Google-Groups/extension.php
index cdd605cd9..eb30de5f9 100644
--- a/lib/core-extensions/Google-Groups/extension.php
+++ b/lib/core-extensions/Google-Groups/extension.php
@@ -6,6 +6,6 @@ class GoogleGroupsExtension extends Minz_Extension {
}
public static function findFeed(string $url): string {
- return preg_replace('%^(https?://groups.google.com/forum)/#!forum/(.+)$%i', '$1/feed/$2/msgs/rss.xml', $url);
+ return preg_replace('%^(https?://groups.google.com/forum)/#!forum/(.+)$%i', '$1/feed/$2/msgs/rss.xml', $url) ?? '';
}
}