diff --git a/src/opnsense/mvc/app/controllers/OPNsense/Base/ApiControllerBase.php b/src/opnsense/mvc/app/controllers/OPNsense/Base/ApiControllerBase.php
index 5bf510c7c..c938f870f 100644
--- a/src/opnsense/mvc/app/controllers/OPNsense/Base/ApiControllerBase.php
+++ b/src/opnsense/mvc/app/controllers/OPNsense/Base/ApiControllerBase.php
@@ -128,6 +128,9 @@ class ApiControllerBase extends ControllerRoot
                     return "Invalid JSON syntax";
                 }
                 $_POST = $jsonRawBody;
+                foreach ($_POST as $key => $value) {
+                    $_REQUEST[$key] = $value;
+                }
                 break;
             case 'application/x-www-form-urlencoded':
             case 'application/x-www-form-urlencoded;charset=utf-8':
diff --git a/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php b/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php
index 0fd111c3a..d67c1292f 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Base/UIModelGrid.php
@@ -64,19 +64,19 @@ class UIModelGrid
         $filter_funct = null,
         $sort_flags = SORT_NATURAL
     ) {
-        $itemsPerPage = $request->getPost('rowCount', 'int', -1);
-        $currentPage = $request->getPost('current', 'int', 1);
+        $itemsPerPage = $request->get('rowCount', 'int', -1);
+        $currentPage = $request->get('current', 'int', 1);
         $sortBy = empty($defaultSort) ? array() : array($defaultSort);
         $sortDescending = false;
 
-        if ($request->hasPost('sort') && is_array($request->getPost("sort"))) {
-            $sortBy = array_keys($request->getPost("sort"));
-            if (!empty($sortBy) && $request->getPost("sort")[$sortBy[0]] == "desc") {
+        if ($request->hasPost('sort') && is_array($request->get("sort"))) {
+            $sortBy = array_keys($request->get("sort"));
+            if (!empty($sortBy) && $request->get("sort")[$sortBy[0]] == "desc") {
                 $sortDescending = true;
             }
         }
 
-        $searchPhrase = $request->getPost('searchPhrase', 'string', '');
+        $searchPhrase = $request->get('searchPhrase', 'string', '');
         return $this->fetch(
             $fields,
             $itemsPerPage,