diff --git a/classes/output/mobile.php b/classes/output/mobile.php
index 19c4f8a..6914cae 100644
--- a/classes/output/mobile.php
+++ b/classes/output/mobile.php
@@ -64,6 +64,7 @@ class mobile {
         $data['cmid'] = $cmid;
         $data['courseid'] = $courseid;
         $data['attendance'] = $attendance;
+        $data['timestamp'] = time(); // Used to prevent attendance session marking page to be cached.
 
         $data['attendancefunction'] = 'mobile_user_form';
         $isteacher = false;
diff --git a/templates/mobile_view_page.mustache b/templates/mobile_view_page.mustache
index 1e4a0dd..217d12b 100644
--- a/templates/mobile_view_page.mustache
+++ b/templates/mobile_view_page.mustache
@@ -43,7 +43,8 @@
             "pointssessionscompleted": "2",
             "percentagesessionscompleted": "2"
         },
-        "cmid": "25"
+        "cmid": "25",
+        "timestamp": "1234"
     }
 }}
 {{=<% %>=}}
@@ -61,7 +62,7 @@
         <h2><% time %></h2>
         <h3><% currentstatus %></h3>
         <%#sessid%>
-        <button ion-button core-site-plugins-new-content component="mod_attendance" method="<% attendancefunction %>" [args]="{cmid: <% cmid %>, courseid: <% courseid %>, sessid: <% sessid %>}">
+        <button ion-button core-site-plugins-new-content component="mod_attendance" method="<% attendancefunction %>" [args]="{cmid: <% cmid %>, courseid: <% courseid %>, sessid: <% sessid %>, timestamp: <% timestamp %>}">
             {{ 'plugin.mod_attendance.submitattendance' | translate }}
         </button>
         <%/sessid%>
diff --git a/version.php b/version.php
index 0c93536..fff9fbd 100644
--- a/version.php
+++ b/version.php
@@ -23,7 +23,7 @@
  */
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version  = 2018091300;
+$plugin->version  = 2018092700;
 $plugin->requires = 2018050800; // Requires 3.5.
 $plugin->release = '3.6.1';
 $plugin->maturity  = MATURITY_ALPHA;