diff --git a/CHANGELOG.md b/CHANGELOG.md
index cc61d8bc9..d489a2358 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -28,6 +28,7 @@
 1. [](#bugfix)
   * Fixes deprecated for return type in Filesystem with PHP 8.3.6 [#3831](https://github.com/getgrav/grav/issues/3831) 
   * Fix for `exif_imagtetype()` throwing an exception when file doesn't exist
+  * Fix JSON output comments check with content type [#3859](https://github.com/getgrav/grav/pull/3859)
 
 # v1.7.46
 ## 05/15/2024
diff --git a/system/src/Grav/Framework/Flex/FlexCollection.php b/system/src/Grav/Framework/Flex/FlexCollection.php
index 9d9fc477c..cfa91008e 100644
--- a/system/src/Grav/Framework/Flex/FlexCollection.php
+++ b/system/src/Grav/Framework/Flex/FlexCollection.php
@@ -440,7 +440,7 @@ class FlexCollection extends ObjectCollection implements FlexCollectionInterface
                 ] + $context
             );
 
-            if ($debugger->enabled()) {
+            if ($debugger->enabled() && $grav['uri']->getContentType() !== 'application/json') {
                 $output = "\n<!–– START {$type} collection ––>\n{$output}\n<!–– END {$type} collection ––>\n";
             }
 
diff --git a/system/src/Grav/Framework/Flex/FlexObject.php b/system/src/Grav/Framework/Flex/FlexObject.php
index b93b6f219..58bd7eb4d 100644
--- a/system/src/Grav/Framework/Flex/FlexObject.php
+++ b/system/src/Grav/Framework/Flex/FlexObject.php
@@ -627,7 +627,7 @@ class FlexObject implements FlexObjectInterface, FlexAuthorizeInterface
                 ] + $context
             );
 
-            if ($debugger->enabled()) {
+            if ($debugger->enabled() && $grav['uri']->getContentType() !== 'application/json') {
                 $name = $this->getKey() . ' (' . $type . ')';
                 $output = "\n<!–– START {$name} object ––>\n{$output}\n<!–– END {$name} object ––>\n";
             }