restrict JS code to current element, fixes #246

js/vips.js

@@ -433,7 +433,7 @@ function vips_post_render(element) {
         }
     });
 
-    $('.cloze_select').filter(':contains("\\\\(")').each(function() {
+    $(element).find('.cloze_select').filter(':contains("\\\\(")').each(function() {
         STUDIP.loadChunk('mathjax').then(({ Hub }) => {
             Hub.Queue(['Typeset', Hub, this]);
         });