Only create linker link if likes exist for a post

daemon.py

@@ -10469,6 +10469,9 @@ class PubServer(BaseHTTPRequestHandler):
                                 self.server.cw_lists,
                                 self.server.lists_enabled,
                                 'inbox', self.server.default_timeline)
+        if not msg:
+            self._404()
+            return True
         msg = msg.encode('utf-8')
         msglen = len(msg)
         self._set_headers('text/html', msglen,

webapp_likers.py

@@ -52,7 +52,9 @@ def html_likers_of_post(base_dir: str, nickname: str,
     post_json_object = \
         locate_post(base_dir, nickname, domain, post_url)
     if not post_json_object:
-        return html_str + html_footer()
+        return None
+    if not post_json_object.get('actor') or not post_json_object.get('object'):
+        return None
 
     # show the top banner
     banner_file, _ = \
@@ -101,11 +103,11 @@ def html_likers_of_post(base_dir: str, nickname: str,
     if has_object_dict(post_json_object):
         obj = post_json_object['object']
     if not obj.get('likes'):
-        return html_str + html_footer()
+        return None
     if not isinstance(obj['likes'], dict):
-        return html_str + html_footer()
+        return None
     if not obj['likes'].get('items'):
-        return html_str + html_footer()
+        return None
 
     html_str += '<center><h2>' + translate['Liked by'] + '</h2></center>\n'
 

webapp_post.py

@@ -659,18 +659,23 @@ def _get_like_icon_html(nickname: str, domain_full: str,
         like_str += '</label>\n'
     like_post_id = remove_hash_from_post_id(post_json_object['id'])
     like_post_id = remove_id_ending(like_post_id)
+
+    # create the link to likers of the post
     likers_post_id = like_post_id.replace('/', '--')
-    likers_screen_link = \
-        '/users/' + nickname + '?likers=' + likers_post_id
+    likers_screen_link = like_title + like_count_str
+    if like_count > 0:
+        likers_screen_link = \
+            '/users/' + nickname + '?likers=' + likers_post_id
+        likers_screen_link = \
+            '<a href=' + "'" + likers_screen_link + "'>" + \
+            like_title + like_count_str + '</a>'
     like_str += \
         '        <a class="imageAnchor" href="/users/' + nickname + '?' + \
         like_link + '=' + like_post_id + \
         page_number_param + \
         '?actor=' + post_json_object['actor'] + \
         '?bm=' + timeline_post_bookmark + \
-        '?tl=' + box_name + '" title="' + \
-        '<a href=' + "'" + likers_screen_link + "'>" + \
-        like_title + like_count_str + '</a>">\n'
+        '?tl=' + box_name + '" title="' + likers_screen_link + '">\n'
     like_str += \
         '          ' + \
         '<img loading="lazy" title="' + like_title + like_count_str + \