diff --git a/app/back-end/modules/render-html/contexts/page-preview.js b/app/back-end/modules/render-html/contexts/page-preview.js
index a56b49e5..3f9f2dc5 100644
--- a/app/back-end/modules/render-html/contexts/page-preview.js
+++ b/app/back-end/modules/render-html/contexts/page-preview.js
@@ -63,7 +63,7 @@ class RendererContextPagePreview extends RendererContext {
             this.page.featuredImage = this.getPageFeaturedImages(this.page.id, true);
         }
 
-        this.metaTitle = 'It is an example value for the preview mode';
+        this.metaTitle = 'Preview: ' + this.title;
         this.metaDescription = 'It is an example value for the preview mode';
         this.metaRobots = 'It is an example value for the preview mode';
     }
diff --git a/app/back-end/modules/render-html/contexts/post-preview.js b/app/back-end/modules/render-html/contexts/post-preview.js
index d9d386f6..91bce515 100644
--- a/app/back-end/modules/render-html/contexts/post-preview.js
+++ b/app/back-end/modules/render-html/contexts/post-preview.js
@@ -88,7 +88,7 @@ class RendererContextPostPreview extends RendererContext {
             this.tags.sort((tagA, tagB) => tagA.name.localeCompare(tagB.name));
         }
 
-        this.metaTitle = 'It is an example value for the preview mode';
+        this.metaTitle = 'Preview: ' + this.title;
         this.metaDescription = 'It is an example value for the preview mode';
         this.metaRobots = 'It is an example value for the preview mode';
         this.post.tags = this.tags;
diff --git a/app/back-end/modules/render-html/handlebars/helpers/responsive-srcset.js b/app/back-end/modules/render-html/handlebars/helpers/responsive-srcset.js
index 18dc2e90..b400ab89 100644
--- a/app/back-end/modules/render-html/handlebars/helpers/responsive-srcset.js
+++ b/app/back-end/modules/render-html/handlebars/helpers/responsive-srcset.js
@@ -29,8 +29,8 @@ function returnSrcSetAttribute (url, type, group) {
         return output;
     }
 
-    // skip GIF and SVG images
-    if (url.slice(-4) === '.gif' || url.slice(-4) === '.svg') {
+    // skip GIF, SVG, WEBP images
+    if (url.slice(-4) === '.gif' || url.slice(-4) === '.svg' || url.slice(-5) === '.webp') {
         return output;
     }