diff --git a/src/Ajax.php b/src/Ajax.php
index a051d70ff..d85be8730 100644
--- a/src/Ajax.php
+++ b/src/Ajax.php
@@ -147,6 +147,13 @@ class Ajax
         $this->response['error_code'] = $error_code;
         $this->response['error_msg'] = strip_tags($error_msg);
 
+        // Get caller info
+        if (!empty($_COOKIE['explain'])) {
+            $ajax_debug = 'ajax die: ' . $this->debug_find_source();
+            $this->response['error_msg'] .= "\n\n" . $ajax_debug;
+            $this->response['console_log'] = $ajax_debug;
+        }
+
         $this->send();
     }
 
@@ -272,6 +279,33 @@ class Ajax
         }
     }
 
+    /**
+     * Find caller source
+     *
+     * @param string $mode
+     * @return mixed|string
+     */
+    function debug_find_source(string $mode = 'all'): mixed
+    {
+        if (empty($_COOKIE['explain'])) {
+            return 'src disabled';
+        }
+        foreach (debug_backtrace() as $trace) {
+            if (!empty($trace['file']) && $trace['file'] !== __FILE__) {
+                switch ($mode) {
+                    case 'file':
+                        return $trace['file'];
+                    case 'line':
+                        return $trace['line'];
+                    case 'all':
+                    default:
+                        return hide_bb_path($trace['file']) . '(' . $trace['line'] . ')';
+                }
+            }
+        }
+        return 'src not found';
+    }
+
     /**
      * Edit user profile actions
      *
diff --git a/src/Legacy/Cache/Common.php b/src/Legacy/Cache/Common.php
index 41acaa66d..59d7049ee 100644
--- a/src/Legacy/Cache/Common.php
+++ b/src/Legacy/Cache/Common.php
@@ -91,10 +91,9 @@ class Common
      * Find caller source
      *
      * @param string $mode
-     *
      * @return string
      */
-    public function debug_find_source(string $mode = ''): string
+    public function debug_find_source(string $mode = 'all'): string
     {
         if (!SQL_PREPEND_SRC_COMM) {
             return 'src disabled';
@@ -106,6 +105,7 @@ class Common
                         return $trace['file'];
                     case 'line':
                         return $trace['line'];
+                    case 'all':
                     default:
                         return hide_bb_path($trace['file']) . '(' . $trace['line'] . ')';
                 }
diff --git a/src/Legacy/Datastore/Common.php b/src/Legacy/Datastore/Common.php
index 9cea545bc..f67e2bdfa 100644
--- a/src/Legacy/Datastore/Common.php
+++ b/src/Legacy/Datastore/Common.php
@@ -165,10 +165,9 @@ class Common
      * Find caller source
      *
      * @param string $mode
-     *
      * @return string
      */
-    public function debug_find_source(string $mode = ''): string
+    public function debug_find_source(string $mode = 'all'): string
     {
         if (!SQL_PREPEND_SRC_COMM) {
             return 'src disabled';
@@ -180,6 +179,7 @@ class Common
                         return $trace['file'];
                     case 'line':
                         return $trace['line'];
+                    case 'all':
                     default:
                         return hide_bb_path($trace['file']) . '(' . $trace['line'] . ')';
                 }
diff --git a/src/Legacy/SqlDb.php b/src/Legacy/SqlDb.php
index 46b92a864..a485a0f15 100644
--- a/src/Legacy/SqlDb.php
+++ b/src/Legacy/SqlDb.php
@@ -845,10 +845,9 @@ class SqlDb
      * Find caller source
      *
      * @param string $mode
-     *
      * @return string
      */
-    public function debug_find_source(string $mode = ''): string
+    public function debug_find_source(string $mode = 'all'): string
     {
         if (!SQL_PREPEND_SRC_COMM) {
             return 'src disabled';
@@ -860,6 +859,7 @@ class SqlDb
                         return $trace['file'];
                     case 'line':
                         return $trace['line'];
+                    case 'all':
                     default:
                         return hide_bb_path($trace['file']) . '(' . $trace['line'] . ')';
                 }
diff --git a/styles/js/main.js b/styles/js/main.js
index 2957c327d..10a2f4265 100644
--- a/styles/js/main.js
+++ b/styles/js/main.js
@@ -343,6 +343,7 @@ Ajax.prototype = {
       }
     } else if (response.error_code) {
       ajax.showErrorMsg(response.error_msg);
+      console.log(response.console_log);
       $('.loading-1').removeClass('loading-1').html('error');
     } else {
       ajax.callback[action](response);