From b4cd1e2a0b23ed5093213c8f939a9e8bcb3ce38c Mon Sep 17 00:00:00 2001
From: SimonFair <39065407+SimonFair@users.noreply.github.com>
Date: Mon, 28 Sep 2026 14:51:44 +0100
Subject: [PATCH 1/2] fix(plugin): align downgrade request flow

---
 .../dynamix.plugin.manager/Downgrade.page     | 22 ++++++++++++++-----
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page b/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page
index 87e8b639ec..c8be4e1984 100644
--- a/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page
+++ b/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page
@@ -117,14 +117,24 @@ function cleanupDiagnostics() {
 function startDowngrade() {
   $('div.spinner').show('slow');
 
-  $.get(
+  $.post(
     '/plugins/dynamix.plugin.manager/include/Downgrade.php',
-    {
-      version: '<?= $rebootDetails->previousVersion ?>',
+    { action: 'prepare' },
+    function(prepareResponse) {
+      $.post(
+        '/plugins/dynamix.plugin.manager/include/Downgrade.php',
+        {
+          nonce: prepareResponse.nonce,
+          confirm: 'yes',
+          version: '<?= $rebootDetails->previousVersion ?>',
+        },
+        function() {
+          refresh();
+        },
+        'json'
+      );
     },
-    function() {
-      refresh();
-    }
+    'json'
   );
 }
 

From 2953bf72a7881214bdb626c4a861b5a4f769be40 Mon Sep 17 00:00:00 2001
From: SimonFair <39065407+SimonFair@users.noreply.github.com>
Date: Wed, 30 Sep 2026 15:40:36 +0100
Subject: [PATCH 2/2] fix(plugin): OS-907 report downgrade request failures

Clear the progress spinner and show an actionable error when either downgrade POST request fails.\n\nRefs: OS-907\nReview: https://github.com/unraid/api/pull/2093#discussion_r4122991367
---
 .../dynamix.plugin.manager/Downgrade.page     | 20 +++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page b/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page
index c8be4e1984..2624bd4024 100644
--- a/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page
+++ b/plugin/source/dynamix.unraid.net/usr/local/emhttp/plugins/dynamix.plugin.manager/Downgrade.page
@@ -114,6 +114,22 @@ function cleanupDiagnostics() {
   setTimeout(cleanupDiagnostics, 2000);
 }
 
+function reportDowngradeError(xhr) {
+  $('div.spinner').hide('slow');
+
+  const response = xhr && xhr.responseJSON;
+  const message = response && response.error
+    ? response.error
+    : "_(Unable to complete the downgrade. Please try again.)_";
+
+  swal({
+    title: "_(Downgrade failed)_",
+    text: message,
+    type: 'error',
+    confirmButtonText: "_(Ok)_",
+  });
+}
+
 function startDowngrade() {
   $('div.spinner').show('slow');
 
@@ -132,10 +148,10 @@ function startDowngrade() {
           refresh();
         },
         'json'
-      );
+      ).fail(reportDowngradeError);
     },
     'json'
-  );
+  ).fail(reportDowngradeError);
 }
 
 function confirmDowngrade() {