diff --git a/bluesky/bluesky.php b/bluesky/bluesky.php
index ed2a8496..ba7c1d65 100644
--- a/bluesky/bluesky.php
+++ b/bluesky/bluesky.php
@@ -1506,6 +1506,10 @@ function bluesky_fetch_missing_post(string $uri, int $uid, int $fetch_uid, int $
 	}
 
 	$class = bluesky_get_uri_class($uri);
+	if (empty($class)) {
+		return $fallback;
+	}
+
 	$fetch_uri = $class->uri;
 
 	Logger::debug('Fetch missing post', ['level' => $level, 'uid' => $uid, 'uri' => $uri]);
diff --git a/tumblr/tumblr.php b/tumblr/tumblr.php
index 78e415ee..04f6a0a4 100644
--- a/tumblr/tumblr.php
+++ b/tumblr/tumblr.php
@@ -614,7 +614,7 @@ function tumblr_send_legacy(array $b)
 		$params['data'] = [];
 		foreach ($media as $photo) {
 			if ($photo['type'] == Post\Media::IMAGE) {
-				if (Network::isLocalLink($photo['url']) && ($data = Photo::getResourceData($photo['url']))) {
+				if (DI::baseUrl()->isLocalUrl($photo['url']) && ($data = Photo::getResourceData($photo['url']))) {
 					$photo = Photo::selectFirst([], ["`resource-id` = ? AND `scale` > ?", $data['guid'], 0]);
 					if (!empty($photo)) {
 						$params['data'][] = Photo::getImageDataForPhoto($photo);