diff --git a/copyparty/web/browser.js b/copyparty/web/browser.js
index 5bf68bd8..5b167140 100644
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
@@ -6687,8 +6687,16 @@ function sandbox(tgt, rules, cls, html) {
if (hash.startsWith('#md-'))
want = hash.slice(1);
+ var env = '', tags = QSA('script');
+ for (var a = 0; a < tags.length; a++) {
+ var js = tags[a].innerHTML;
+ if (js && js.indexOf('have_up2k_idx') + 1)
+ env = js.split(/\blogues *=/)[0] + 'a;';
+ }
+
html = '' + html +
+ '' +
'' +
'