diff --git a/packages/hydrooj/bin/hydrooj.js b/packages/hydrooj/bin/hydrooj.js
index ef9f09a32..517870bbd 100755
--- a/packages/hydrooj/bin/hydrooj.js
+++ b/packages/hydrooj/bin/hydrooj.js
@@ -2,6 +2,7 @@
 
 /* eslint-disable consistent-return */
 
+require('source-map-support').install();
 const os = require('os');
 const path = require('path');
 const cluster = require('cluster');
diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index eac6e996f..d76743250 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.32.11",
+    "version": "2.32.12",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",
@@ -36,6 +36,7 @@
         "reflect-metadata": "^0.1.13",
         "serialize-javascript": "^6.0.0",
         "sockjs": "^0.3.21",
+        "source-map-support": "^0.5.19",
         "superagent": "^6.1.0"
     },
     "devDependencies": {
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index f364bdbda..60b04e4e4 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.16.2",
+  "version": "4.16.3",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",
diff --git a/packages/ui-default/templates/partials/contest_sidebar.html b/packages/ui-default/templates/partials/contest_sidebar.html
index 797fb03e2..637adb467 100644
--- a/packages/ui-default/templates/partials/contest_sidebar.html
+++ b/packages/ui-default/templates/partials/contest_sidebar.html
@@ -75,7 +75,7 @@
     {% endif %}
     {% if handler.user.own(tdoc) or handler.user.hasPriv(PRIV.PRIV_READ_RECORD_CODE) or handler.user.hasPerm(perm.PERM_READ_RECORD_CODE) %}
       {% if model.contest.canShowRecord.call(handler, tdoc, true) %}
-        <li class="menu__item"><a class="menu__link" href="{{ url('contest_code', tid=tdoc.docId) }}">
+        <li class="menu__item"><a class="menu__link" href="{{ url('contest_code', tid=tdoc.docId) }}" data-no-instant>
           <span class="icon icon-download"></span> {{ _('Export All Code') }}
         </a></li>
       {% endif %}
diff --git a/packages/ui-default/templates/partials/homework_sidebar.html b/packages/ui-default/templates/partials/homework_sidebar.html
index b11ce335e..5985ce55f 100644
--- a/packages/ui-default/templates/partials/homework_sidebar.html
+++ b/packages/ui-default/templates/partials/homework_sidebar.html
@@ -58,7 +58,7 @@
       </a></li>
     {% endif %}
     {% if handler.user.own(tdoc) or handler.user.hasPriv(PRIV.PRIV_READ_RECORD_CODE) or handler.user.hasPerm(perm.PERM_READ_RECORD_CODE) %}
-      <li class="menu__item"><a class="menu__link" href="{{ url('homework_code', tid=tdoc.docId) }}">
+      <li class="menu__item"><a class="menu__link" href="{{ url('homework_code', tid=tdoc.docId) }}" data-no-instant>
         <span class="icon icon-download"></span> {{ _('Export All Code') }}
       </a></li>
     {% endif %}