diff --git a/tests/end2end/data/insert_mode_settings/html/autofocus.html b/tests/end2end/data/insert_mode_settings/html/autofocus.html
index db5399252..5b707426f 100644
--- a/tests/end2end/data/insert_mode_settings/html/autofocus.html
+++ b/tests/end2end/data/insert_mode_settings/html/autofocus.html
@@ -3,8 +3,17 @@
     <head>
         <meta charset="utf-8">
         <title>Inputs Autofocus</title>
+        <script type="text/javascript">
+          function setup_event_listener() {
+              var elem = document.getElementById('qute-input-autofocus');
+              console.log(elem);
+              elem.addEventListener('input', function() {
+                  console.log("contents: " + elem.value);
+              });
+          }
+        </script>
     </head>
-    <body>
+    <body onload="setup_event_listener()">
       <input id="qute-input-autofocus" type="text" autofocus value=""/>
       <input id="qute-input-disabled" disabled="disabled" href="#"/>
     </body>
diff --git a/tests/end2end/data/insert_mode_settings/html/input.html b/tests/end2end/data/insert_mode_settings/html/input.html
index 2965693d3..0617cae3f 100644
--- a/tests/end2end/data/insert_mode_settings/html/input.html
+++ b/tests/end2end/data/insert_mode_settings/html/input.html
@@ -3,8 +3,17 @@
     <head>
         <meta charset="utf-8">
         <title>Input</title>
+        <script type="text/javascript">
+          function setup_event_listener() {
+              var elem = document.getElementById('qute-input');
+              console.log(elem);
+              elem.addEventListener('input', function() {
+                  console.log("contents: " + elem.value);
+              });
+          }
+        </script>
     </head>
-    <body>
+    <body onload="setup_event_listener()">
         <input id="qute-input" type="text" value=""/>
     </body>
 </html>
diff --git a/tests/end2end/data/insert_mode_settings/html/textarea.html b/tests/end2end/data/insert_mode_settings/html/textarea.html
index 403809a3a..1ab9d7524 100644
--- a/tests/end2end/data/insert_mode_settings/html/textarea.html
+++ b/tests/end2end/data/insert_mode_settings/html/textarea.html
@@ -3,8 +3,16 @@
     <head>
         <meta charset="utf-8">
         <title>Textarea</title>
+        <script type="text/javascript">
+          function setup_event_listener() {
+              var elem = document.getElementById('qute-textarea');
+              elem.addEventListener('input', function() {
+                  console.log("contents: " + elem.value);
+              });
+          }
+        </script>
     </head>
-    <body>
+    <body onload="setup_event_listener()">
         <textarea id="qute-textarea"></textarea>
     </body>
 </html>
diff --git a/tests/end2end/test_insert_mode.py b/tests/end2end/test_insert_mode.py
index cd57968ca..6939dae0e 100644
--- a/tests/end2end/test_insert_mode.py
+++ b/tests/end2end/test_insert_mode.py
@@ -56,6 +56,10 @@ def test_insert_mode(file_name, elem_id, source, input_text, auto_insert,
             # second time.
         quteproc.send_cmd(':debug-set-fake-clipboard "{}"'.format(input_text))
         quteproc.send_cmd(':insert-text {clipboard}')
+    else:
+        raise ValueError("Invalid source {!r}".format(source))
+
+    quteproc.wait_for_js('contents: {}'.format(input_text))
 
     quteproc.send_cmd(':leave-mode')
     quteproc.send_cmd(':hint all')
