chg: Display size of rendered page

Fix #482

website/web/templates/hostname_popup.html

@@ -186,6 +186,7 @@
           <a href="{{ url_for('urlnode_rendered_content', tree_uuid=tree_uuid, node_uuid=url['url_object'].uuid) }}">
               Download rendered HTML page
           </a>
+          ({{ sizeof_fmt(url['url_object'].rendered_html.getbuffer().nbytes)}})
           </br>
           <a href="{{ url_for('urlnode_urls_in_rendered_content', tree_uuid=tree_uuid, node_uuid=url['url_object'].uuid) }}">
               Download URLs in rendered HTML page

website/web/templates/macros.html

@@ -146,7 +146,7 @@
 {% if details and details[0] == False %}
   <img src="/static/bomb.svg" title="Known malicious content in the response." width="21" height="21"/>
 {%endif%}
-<b>Body size</b>: {{ sizeof_fmt(ressource_size) }}
+<b>Body size</b> (in the HTTP response): {{ sizeof_fmt(ressource_size) }}
 {% if details %}
   {% if details[0] %}
   - This file is known <b>legitimate</b> on the following domains: {{ ', '.join(details[1]) }}.