diff --git a/src/js/lib/staging.js b/src/js/lib/staging.js
index a89e9d1..f158ebe 100644
--- a/src/js/lib/staging.js
+++ b/src/js/lib/staging.js
@@ -13,8 +13,14 @@ function mungeLink(href) {
     var tmp = href.split('?');
     href = tmp[0].replace('//hdl.handle.net/2027/', '//' + HT.service_domain + '/cgi/pt?id=');
     if (tmp[1]) {
-      var tmp2 = tmp[1].split('=');
-      href += ';seq=' + tmp2[2];
+      if (tmp[1].includes('urlappend=')) {
+        let querystring = tmp[1].replaceAll('%3B', ';')
+        querystring = querystring.replace('urlappend=', '')
+        href += querystring
+      } else {
+        var tmp2 = tmp[1].split('=');
+        href += ';seq=' + tmp2[2];
+      }
     }
   }
   return href.replace('https:', location.protocol);