diff --git a/chat/ImagePreview.vue b/chat/ImagePreview.vue
index 98ee3ed..a0366f0 100644
--- a/chat/ImagePreview.vue
+++ b/chat/ImagePreview.vue
@@ -248,7 +248,7 @@
     .image-preview-external {
         position: absolute;
         width: 50%;
-        height: 50%;
+        height: 70%;
         top: 0;
         left: 0;
         pointer-events: none;
@@ -258,7 +258,7 @@
     .image-preview-local {
         position: absolute;
         width: 50%;
-        height: 50%;
+        height: 70%;
         top: 0;
         left: 0;
         pointer-events: none;
diff --git a/chat/image-preview-mutator.ts b/chat/image-preview-mutator.ts
index 4afd784..6c59507 100644
--- a/chat/image-preview-mutator.ts
+++ b/chat/image-preview-mutator.ts
@@ -23,8 +23,9 @@ export class ImagePreviewMutator {
 
         const mutatorJs = this.mutators[urlDomain];
 
-        if (!mutatorJs)
-            return;
+        if (!mutatorJs) {
+            return this.mutators['default'];
+        }
 
         return `(() => { try { ${mutatorJs} } catch (err) { console.error(err); } })()`;
     }
@@ -34,6 +35,7 @@ export class ImagePreviewMutator {
     }
 
     protected init() {
+        this.add('default', this.getBaseJsMutatorScript('#image, #video, img, video'));
         this.add('e621.net', this.getBaseJsMutatorScript('#image, video'));
         this.add('e-hentai.org', this.getBaseJsMutatorScript('#img, video'));
         this.add('gelbooru.com', this.getBaseJsMutatorScript('#image, video'));
@@ -42,6 +44,8 @@ export class ImagePreviewMutator {
         this.add('gfycat.com', this.getBaseJsMutatorScript('video'));
         this.add('gfycatporn.com', this.getBaseJsMutatorScript('video'));
         this.add('www.youtube.com', this.getBaseJsMutatorScript('video'));
+        this.add('instantfap.com', this.getBaseJsMutatorScript('#post img, #post video'));
+        this.add('www.webmshare.com', this.getBaseJsMutatorScript('video'));
 
         // this fixes videos only -- images are fine as is
         this.add('i.imgur.com', this.getBaseJsMutatorScript('video'));
diff --git a/readme.md b/readme.md
index c995d05..8d1f947 100644
--- a/readme.md
+++ b/readme.md
@@ -13,13 +13,15 @@ This repository contains a modified version of the mainline F-Chat 3.0 client.
     *    Hover cursor over any `[url]` to see a preview of it
 *   Profile
     *    Kinks are auto-compared when profile is loaded
-    *    Custom kink explanations are shown inline
+    *    Custom kink explanations can be expanded inline
     *    Custom kinks are highlighted  
     *    Gender, fur/human status, age, and sexual preference are highlighted if compatible or incompatible
     *    Guestbook, friend, and group counts are visible on tabs
-    *    Character pictures can be expanded inline
+    *    Character pictures are expanded inline
     *    Cleaner presentation for the side bar details (age, etc.), sorted in most relevant order
     *    Less informative side bar details (views, contact) are separated and shown in a less prominent way
+    *    Cleaner guestbook view
+    *    Link previews