diff --git a/wp-includes/js/mce-view.js b/wp-includes/js/mce-view.js
index 0881680b77..7d5f051574 100644
--- a/wp-includes/js/mce-view.js
+++ b/wp-includes/js/mce-view.js
@@ -268,14 +268,25 @@ window.wp = window.wp || {};
 
 			getHtml: function() {
 				var attrs = this.shortcode.attrs.named,
-					options;
+					options,
+					attachments;
 
 				if ( ! this.attachments.length ) {
 					return;
 				}
 
+				attachments = this.attachments.toJSON();
+
+				_.each( attachments, function( attachment ) {
+					if ( attachment.sizes.thumbnail ) {
+						attachment.thumbnail = attachment.sizes.thumbnail;
+					} else {
+						attachment.thumbnail = attachment.sizes.full;
+					}
+				} );
+
 				options = {
-					attachments: this.attachments.toJSON(),
+					attachments: attachments,
 					columns: attrs.columns ? parseInt( attrs.columns, 10 ) : 3
 				};
 
diff --git a/wp-includes/js/mce-view.min.js b/wp-includes/js/mce-view.min.js
index 12d09cc560..96745d6148 100644
--- a/wp-includes/js/mce-view.min.js
+++ b/wp-includes/js/mce-view.min.js
@@ -1 +1 @@
-window.wp=window.wp||{},function(a){var b={},c={},d=wp.media,e=["encodedText"];wp.mce=wp.mce||{},wp.mce.View=function(a){a||(a={}),_.extend(this,_.pick(a,e)),this.initialize.apply(this,arguments)},_.extend(wp.mce.View.prototype,{initialize:function(){},html:function(){},render:function(){var b=this.getHtml();_.each(tinymce.editors,function(c){var d;c.plugins.wpview&&(d=c.getDoc(),a(d).find('[data-wpview-text="'+this.encodedText+'"]').html(b))},this)}}),wp.mce.View.extend=Backbone.View.extend,wp.mce.views={register:function(a,c){b[a]=c},get:function(a){return b[a]},unregister:function(a){delete b[a]},toViews:function(a){var c,d=[{content:a}];return _.each(b,function(a,b){c=d.slice(),d=[],_.each(c,function(c){var e,f=c.content;if(c.processed)return void d.push(c);for(;f&&(e=a.toView(f));)e.index&&d.push({content:f.substring(0,e.index)}),d.push({content:wp.mce.views.toView(b,e.content,e.options),processed:!0}),f=f.slice(e.index+e.content.length);f&&d.push({content:f})})}),_.pluck(d,"content").join("")},toView:function(a,b,d){var e,f,g=wp.mce.views.get(a),h=window.encodeURIComponent(b);return g?(wp.mce.views.getInstance(h)||(f=d,f.encodedText=h,e=new g.View(f),c[h]=e),wp.html.string({tag:"div",attrs:{"class":"wpview-wrap wpview-type-"+a,"data-wpview-text":h,"data-wpview-type":a,contenteditable:"false"},content:" "})):b},refreshView:function(a,b){var d,e,f,g=window.encodeURIComponent(b);f=wp.mce.views.getInstance(g),f||(e=a.toView(b),d=e.options,d.encodedText=g,f=new a.View(d),c[g]=f),wp.mce.views.render()},getInstance:function(a){return c[a]},render:function(){_.each(c,function(a){a.render()})},edit:function(b){var c=a(b).data("wpview-type"),d=wp.mce.views.get(c);d&&d.edit(b)}},wp.mce.gallery={shortcode:"gallery",toView:function(a){var b=wp.shortcode.next(this.shortcode,a);if(b)return{index:b.index,content:b.content,options:{shortcode:b.shortcode}}},View:wp.mce.View.extend({className:"editor-gallery",template:d.template("editor-gallery"),postID:a("#post_ID").val(),initialize:function(a){this.shortcode=a.shortcode,this.fetch()},fetch:function(){this.attachments=wp.media.gallery.attachments(this.shortcode,this.postID),this.attachments.more().done(_.bind(this.render,this))},getHtml:function(){var a,b=this.shortcode.attrs.named;if(this.attachments.length)return a={attachments:this.attachments.toJSON(),columns:b.columns?parseInt(b.columns,10):3},this.template(a)}}),edit:function(b){var c,d,e=wp.media.gallery,f=this;d=window.decodeURIComponent(a(b).data("wpview-text")),c=e.edit(d),c.state("gallery-edit").on("update",function(d){var g=e.shortcode(d).string();a(b).attr("data-wpview-text",window.encodeURIComponent(g)),wp.mce.views.refreshView(f,g),c.detach()})}},wp.mce.views.register("gallery",wp.mce.gallery)}(jQuery);
\ No newline at end of file
+window.wp=window.wp||{},function(a){var b={},c={},d=wp.media,e=["encodedText"];wp.mce=wp.mce||{},wp.mce.View=function(a){a||(a={}),_.extend(this,_.pick(a,e)),this.initialize.apply(this,arguments)},_.extend(wp.mce.View.prototype,{initialize:function(){},html:function(){},render:function(){var b=this.getHtml();_.each(tinymce.editors,function(c){var d;c.plugins.wpview&&(d=c.getDoc(),a(d).find('[data-wpview-text="'+this.encodedText+'"]').html(b))},this)}}),wp.mce.View.extend=Backbone.View.extend,wp.mce.views={register:function(a,c){b[a]=c},get:function(a){return b[a]},unregister:function(a){delete b[a]},toViews:function(a){var c,d=[{content:a}];return _.each(b,function(a,b){c=d.slice(),d=[],_.each(c,function(c){var e,f=c.content;if(c.processed)return void d.push(c);for(;f&&(e=a.toView(f));)e.index&&d.push({content:f.substring(0,e.index)}),d.push({content:wp.mce.views.toView(b,e.content,e.options),processed:!0}),f=f.slice(e.index+e.content.length);f&&d.push({content:f})})}),_.pluck(d,"content").join("")},toView:function(a,b,d){var e,f,g=wp.mce.views.get(a),h=window.encodeURIComponent(b);return g?(wp.mce.views.getInstance(h)||(f=d,f.encodedText=h,e=new g.View(f),c[h]=e),wp.html.string({tag:"div",attrs:{"class":"wpview-wrap wpview-type-"+a,"data-wpview-text":h,"data-wpview-type":a,contenteditable:"false"},content:" "})):b},refreshView:function(a,b){var d,e,f,g=window.encodeURIComponent(b);f=wp.mce.views.getInstance(g),f||(e=a.toView(b),d=e.options,d.encodedText=g,f=new a.View(d),c[g]=f),wp.mce.views.render()},getInstance:function(a){return c[a]},render:function(){_.each(c,function(a){a.render()})},edit:function(b){var c=a(b).data("wpview-type"),d=wp.mce.views.get(c);d&&d.edit(b)}},wp.mce.gallery={shortcode:"gallery",toView:function(a){var b=wp.shortcode.next(this.shortcode,a);if(b)return{index:b.index,content:b.content,options:{shortcode:b.shortcode}}},View:wp.mce.View.extend({className:"editor-gallery",template:d.template("editor-gallery"),postID:a("#post_ID").val(),initialize:function(a){this.shortcode=a.shortcode,this.fetch()},fetch:function(){this.attachments=wp.media.gallery.attachments(this.shortcode,this.postID),this.attachments.more().done(_.bind(this.render,this))},getHtml:function(){var a,b,c=this.shortcode.attrs.named;if(this.attachments.length)return b=this.attachments.toJSON(),_.each(b,function(a){a.thumbnail=a.sizes.thumbnail?a.sizes.thumbnail:a.sizes.full}),a={attachments:b,columns:c.columns?parseInt(c.columns,10):3},this.template(a)}}),edit:function(b){var c,d,e=wp.media.gallery,f=this;d=window.decodeURIComponent(a(b).data("wpview-text")),c=e.edit(d),c.state("gallery-edit").on("update",function(d){var g=e.shortcode(d).string();a(b).attr("data-wpview-text",window.encodeURIComponent(g)),wp.mce.views.refreshView(f,g),c.detach()})}},wp.mce.views.register("gallery",wp.mce.gallery)}(jQuery);
\ No newline at end of file
diff --git a/wp-includes/media-template.php b/wp-includes/media-template.php
index 345935a91e..946e506a88 100644
--- a/wp-includes/media-template.php
+++ b/wp-includes/media-template.php
@@ -897,12 +897,6 @@ function wp_print_media_templates() {
 			</div>
 		</div>
 	</script>
-	<?php
-
-		//TODO: do we want to deal with the fact that the elements used for gallery items are filterable and can be overriden via shortcode attributes
-		// do we want to deal with the difference between display and edit context at all? (e.g. wptexturize() being applied to the caption.
-	?>
-
 	<script type="text/html" id="tmpl-editor-gallery">
 		<div class="toolbar">
 			<div class="dashicons dashicons-edit edit"></div>
@@ -912,14 +906,12 @@ function wp_print_media_templates() {
 			<# _.each( data.attachments, function( attachment, index ) { #>
 				<dl class="gallery-item">
 					<dt class="gallery-icon">
-						<?php // TODO: need to figure out the best way to make sure that we have thumbnails ?>
-						<img src="{{{ attachment.sizes.thumbnail.url }}}" />
+						<img src="{{{ attachment.thumbnail.url }}}" width="{{ attachment.thumbnail.width }}" height="{{ attachment.thumbnail.height }}" />
 					</dt>
 					<dd class="wp-caption-text gallery-caption">
 						{{ attachment.caption }}
 					</dd>
 				</dl>
-				<?php // this is kind silly, but copied from the gallery shortcode. Maybe it should be removed ?>
 				<# if ( index % data.columns === data.columns - 1 ) { #>
 					<br style="clear: both;">
 				<# } #>