Resolve #3354894 "Cloudinary stream wrapper"

Closes #3354894

modules/cloudinary_stream_wrapper/src/StreamWrapper/CloudinaryStreamWrapper.php

@@ -7,6 +7,7 @@ use Cloudinary\Asset\AssetType;
 use Cloudinary\Asset\DeliveryType;
 use Cloudinary\Configuration\Configuration;
 use Drupal\Core\StreamWrapper\StreamWrapperInterface;
+use Drupal\Core\Url;
 
 /**
  * Implement DrupalStreamWrapperInterface with cloudinary[.folder]://.
@@ -309,12 +310,13 @@ class CloudinaryStreamWrapper implements StreamWrapperInterface {
       [, $transformation, $target] = $matches;
     }
 
+    $public_id = $target;
+
     // Extract format.
     $parts = explode('.', $target);
     if (count($parts) > 1) {
       $format = array_pop($parts);
     }
-    $public_id = implode('.', $parts);
 
     return [
       'style_name' => $style_name ?? NULL,
@@ -364,9 +366,12 @@ class CloudinaryStreamWrapper implements StreamWrapperInterface {
       ];
       $resource = cloudinary_stream_wrapper_load_file($info['public_id'], $options);
 
-      // Try to load resource by target (includes file extension).
-      if (!$resource) {
-        $resource = cloudinary_stream_wrapper_load_file($info['target'], $options);
+      // If the asset wasn't saved yet and the resource doesn't exist on
+      // Cloudinary anymore it is not possible to build a URL.
+      if (!isset($resource['secure_url'])) {
+        // Return the URL to the root of the site because the method requires
+        // a valid URL to be returned.
+        return Url::fromUserInput('/', ['absolute' => TRUE])->toString();
       }
 
       return $resource['secure_url'];