diff --git a/mod/quiz/accessrule/seb/rule.php b/mod/quiz/accessrule/seb/rule.php
index c4c75c2d78c..54a7c2f2e00 100644
--- a/mod/quiz/accessrule/seb/rule.php
+++ b/mod/quiz/accessrule/seb/rule.php
@@ -454,7 +454,6 @@ class quizaccess_seb extends quiz_access_rule_base {
      */
     public function setup_attempt_page($page) {
         $page->set_title($this->quizobj->get_course()->shortname . ': ' . $page->title);
-        $page->set_cacheable(false);
         $page->set_popup_notification_allowed(false); // Prevent message notifications.
         $page->set_heading($page->title);
         $page->set_pagelayout('secure');
diff --git a/mod/quiz/accessrule/securewindow/rule.php b/mod/quiz/accessrule/securewindow/rule.php
index bbeda5449c9..1857dbcd7e5 100644
--- a/mod/quiz/accessrule/securewindow/rule.php
+++ b/mod/quiz/accessrule/securewindow/rule.php
@@ -72,7 +72,6 @@ class quizaccess_securewindow extends quiz_access_rule_base {
     public function setup_attempt_page($page) {
         $page->set_popup_notification_allowed(false); // Prevent message notifications.
         $page->set_title($this->quizobj->get_course()->shortname . ': ' . $page->title);
-        $page->set_cacheable(false);
         $page->set_pagelayout('secure');
 
         if ($this->quizobj->is_preview_user()) {
diff --git a/mod/quiz/attempt.php b/mod/quiz/attempt.php
index 5a03823e217..53bb81459a5 100644
--- a/mod/quiz/attempt.php
+++ b/mod/quiz/attempt.php
@@ -44,6 +44,8 @@ $cmid = optional_param('cmid', null, PARAM_INT);
 $attemptobj = quiz_create_attempt_handling_errors($attemptid, $cmid);
 $page = $attemptobj->force_page_number_into_range($page);
 $PAGE->set_url($attemptobj->attempt_url(null, $page));
+// During quiz attempts, the browser back/forwards buttons should force a reload.
+$PAGE->set_cacheable(false);
 
 // Check login.
 require_login($attemptobj->get_course(), false, $attemptobj->get_cm());
diff --git a/mod/quiz/startattempt.php b/mod/quiz/startattempt.php
index 7d2398ebce6..ed05d61fca3 100644
--- a/mod/quiz/startattempt.php
+++ b/mod/quiz/startattempt.php
@@ -44,6 +44,8 @@ if (!$course = $DB->get_record('course', array('id' => $cm->course))) {
 $quizobj = quiz::create($cm->instance, $USER->id);
 // This script should only ever be posted to, so set page URL to the view page.
 $PAGE->set_url($quizobj->view_url());
+// During quiz attempts, the browser back/forwards buttons should force a reload.
+$PAGE->set_cacheable(false);
 
 // Check login and sesskey.
 require_login($quizobj->get_course(), false, $quizobj->get_cm());
diff --git a/mod/quiz/summary.php b/mod/quiz/summary.php
index bd98110f574..682c8b3e7c5 100644
--- a/mod/quiz/summary.php
+++ b/mod/quiz/summary.php
@@ -30,6 +30,8 @@ $attemptid = required_param('attempt', PARAM_INT); // The attempt to summarise.
 $cmid = optional_param('cmid', null, PARAM_INT);
 
 $PAGE->set_url('/mod/quiz/summary.php', array('attempt' => $attemptid));
+// During quiz attempts, the browser back/forwards buttons should force a reload.
+$PAGE->set_cacheable(false);
 
 $attemptobj = quiz_create_attempt_handling_errors($attemptid, $cmid);