diff --git a/src/becca/entities/note_revision.js b/src/becca/entities/note_revision.js
index d90649231..af51687a5 100644
--- a/src/becca/entities/note_revision.js
+++ b/src/becca/entities/note_revision.js
@@ -167,12 +167,14 @@ class NoteRevision extends AbstractEntity {
             dateCreated: this.dateCreated,
             utcDateLastEdited: this.utcDateLastEdited,
             utcDateCreated: this.utcDateCreated,
-            utcDateModified: this.utcDateModified
+            utcDateModified: this.utcDateModified,
+            contentLength: this.contentLength
         };
     }
 
     getPojoToSave() {
         const pojo = this.getPojo();
+        delete pojo.contentLength; // not getting persisted
 
         if (pojo.isProtected) {
             if (protectedSessionService.isProtectedSessionAvailable()) {
diff --git a/src/public/app/services/frontend_script_api.js b/src/public/app/services/frontend_script_api.js
index 973b2901a..249e35829 100644
--- a/src/public/app/services/frontend_script_api.js
+++ b/src/public/app/services/frontend_script_api.js
@@ -39,12 +39,24 @@ function FrontendScriptApi(startNote, currentNote, originEntity = null, $contain
     /** @property {CollapsibleWidget} */
     this.CollapsibleWidget = CollapsibleWidget;
 
-    /** @property {NoteContextAwareWidget} */
+    /**
+     * @property {NoteContextAwareWidget}
+     * @deprecated use NoteContextAwareWidget instead
+     */
     this.TabAwareWidget = NoteContextAwareWidget;
 
-    /** @property {NoteContextCachingWidget} */
+    /** @property {NoteContextAwareWidget} */
+    this.NoteContextAwareWidget = NoteContextAwareWidget;
+
+    /**
+     * @property {NoteContextCachingWidget}
+     * @deprecated use NoteContextCachingWidget instead
+     */
     this.TabCachingWidget = NoteContextCachingWidget;
 
+    /** @property {NoteContextAwareWidget} */
+    this.NoteContextCachingWidget = NoteContextCachingWidget;
+
     /** @property {BasicWidget} */
     this.BasicWidget = BasicWidget;
 
diff --git a/src/public/app/widgets/mermaid.js b/src/public/app/widgets/mermaid.js
index fa26149bd..04a6b838a 100644
--- a/src/public/app/widgets/mermaid.js
+++ b/src/public/app/widgets/mermaid.js
@@ -10,6 +10,7 @@ const TPL = `<div class="mermaid-widget">
             min-height: 200px;
             border-bottom: 1px solid var(--main-border-color);
             padding: 20px;
+            margin-bottom: 10px;
             display: flex;
             justify-content: space-around; /* centering rendered SVG */
             flex-basis: 0;