Fix cache + problem pdf

templates/problem/feed/problems.html

@@ -30,7 +30,7 @@
     {% endif %}
     <div class="blog-description">
       <div class='content-description'>
-        {% cache 86400 'problem_html' problem.id MATH_ENGINE LANGUAGE_CODE %}
+        {% cache 86400 'problem_html' problem.id LANGUAGE_CODE %}
           {{ problem.description|markdown(lazy_load=True)|reference|str|safe }}
         {% endcache %}
         {% if problem.pdf_description %}

templates/problem/problem.html

@@ -65,13 +65,15 @@
         e.preventDefault();
         if (!$('#raw_problem').attr('src')) {
           $('#raw_problem').attr('src', '{{problem.code}}/raw')
-        }
-        // while(!$('.math-loaded', frames['raw_problem'].document).length){
-        //   await new Promise(r => setTimeout(r, 200));
-        // }
-        setTimeout(() => {
+          $('#raw_problem').on('load', function() {
+            renderKatex(frames['raw_problem'].document);
             frames['raw_problem'].print();
-        }, 1000);
+          });
+        }
+        else {
+          frames['raw_problem'].print();
+          return;
+        }
       });
       $('#clarification_header').on('click', function() {
         $('#clarification_header_container').hide();

templates/user/users-table.html

@@ -39,7 +39,7 @@
   <td class="user-problem-count">{{ user.problem_count }}</td>
   <td>
     <div class="about-td">
-      {% cache 86400 'user_about' user.id MATH_ENGINE %}
+      {% cache 86400 'user_about' user.id %}
         {% if user.about %}
           {{ user.about|markdown(lazy_load=True)|reference|str|safe }}
         {% endif %}