Null dynamic previews on plain editor

app/assets/javascripts/app/controllers/editor.js

@@ -346,6 +346,11 @@ angular.module('app')
     }
 
     this.contentChanged = function() {
+
+      // Clear dynamic previews if using plain editor
+      this.note.content.preview_html = null;
+      this.note.content.preview_plain = null;
+
       // content changes should bypass manual debouncer as we use the built in ng-model-options debouncer
       this.changesMade({bypassDebouncer: true});
     }

app/assets/stylesheets/app/_notes.scss

@@ -147,6 +147,7 @@
 
       .html-preview {
         margin-top: 4px;
+        margin-bottom: 4px;
       }
     }
 

vendor/assets/javascripts/angular-sanitize.js

@@ -252,7 +252,7 @@ function $SanitizeProvider() {
   // Safe Block Elements - HTML5
   var blockElements = extend({}, optionalEndTagBlockElements, toMap('address,article,' +
           'aside,blockquote,caption,center,del,dir,div,dl,figure,figcaption,footer,h1,h2,h3,h4,h5,' +
-          'h6,header,hgroup,hr,ins,map,menu,nav,ol,pre,section,table,ul'));
+          'h6,header,hgroup,hr,ins,map,menu,nav,ol,pre,section,table,ul,progress'));
 
   // Inline Elements - HTML5
   var inlineElements = extend({}, optionalEndTagInlineElements, toMap('a,abbr,acronym,b,' +
@@ -268,7 +268,7 @@ function $SanitizeProvider() {
           'radialGradient,rect,stop,svg,switch,text,title,tspan');
 
   // Blocked Elements (will be stripped)
-  var blockedElements = toMap('script,style');
+  var blockedElements = toMap('script');
 
   var validElements = extend({},
                                      voidElements,