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src/components/article/ArticleImageSearchDialog.jsx

@@ -231,9 +231,11 @@ export default class ArticleImageSearchDialog extends PureComponent {
         }
       }
 
-      // 2. Upload AVIF to article
+      // 2. Upload photo to article
       this.setState({ processingStep: 'Bild wird gespeichert...' });
-      const file = new File([avifBlob], 'article-photo.avif', { type: 'image/avif' });
+      const file = avifBlob instanceof File
+        ? avifBlob
+        : new File([avifBlob], 'article-photo.webp', { type: avifBlob.type || 'image/webp' });
       const res = await this.context.article.addImage(articleData.sku, file);
       requireObject(res, 'POST /api/article/:sku/image');
       requireObject(res.image, 'image');