diff --git a/src/platform/src/Result/RawHttpResult.php b/src/platform/src/Result/RawHttpResult.php
index cf3ced922..3969d7b05 100644
--- a/src/platform/src/Result/RawHttpResult.php
+++ b/src/platform/src/Result/RawHttpResult.php
@@ -55,6 +55,11 @@ public function getDataStream(): iterable
                     continue;
                 }
 
+                if (str_starts_with(trim($delta), ':')) {
+                    // SEE comments via Spec https://html.spec.whatwg.org/multipage/server-sent-events.html#event-stream-interpretation
+                    continue;
+                }
+
                 yield json_decode($delta, true, flags: \JSON_THROW_ON_ERROR);
             }
         }
diff --git a/src/platform/tests/Result/StreamResultTest.php b/src/platform/tests/Result/StreamResultTest.php
index 1ae3deac0..bb03f0768 100644
--- a/src/platform/tests/Result/StreamResultTest.php
+++ b/src/platform/tests/Result/StreamResultTest.php
@@ -32,4 +32,22 @@ public function testGetContent()
         $this->assertSame('data1', $content[0]);
         $this->assertSame('data2', $content[1]);
     }
+
+    public function testGetContentInclSseComments()
+    {
+        $generator = (static function () {
+            yield 'data1';
+            yield ': this is just a comment';
+            yield 'data2';
+        })();
+
+        $result = new StreamResult($generator);
+        $this->assertInstanceOf(\Generator::class, $result->getContent());
+
+        $content = iterator_to_array($result->getContent());
+
+        $this->assertCount(2, $content);
+        $this->assertSame('data1', $content[0]);
+        $this->assertSame('data2', $content[1]);
+    }
 }