1 files changed, 16 insertions, 2 deletions
diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index 5394089d220..cc1a82d04ef 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -2837,7 +2837,14 @@ impl Document {
         let trusted_pending = Trusted::new(pending);
         let trusted_promise = TrustedPromise::new(promise.clone());
         let handler = ElementPerformFullscreenEnter::new(trusted_pending, trusted_promise, error);
-        let script_msg = CommonScriptMsg::Task(ScriptThreadEventCategory::EnterFullscreen, handler, pipeline_id);
+        // NOTE: This steps should be running in parallel
+        // https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen
+        let script_msg = CommonScriptMsg::Task(
+            ScriptThreadEventCategory::EnterFullscreen,
+            handler,
+            pipeline_id,
+            TaskSourceName::DOMManipulation,
+        );
         let msg = MainThreadScriptMsg::Common(script_msg);
         window.main_thread_script_chan().send(msg).unwrap();
 
@@ -2870,7 +2877,14 @@ impl Document {
         let trusted_promise = TrustedPromise::new(promise.clone());
         let handler = ElementPerformFullscreenExit::new(trusted_element, trusted_promise);
         let pipeline_id = Some(global.pipeline_id());
-        let script_msg = CommonScriptMsg::Task(ScriptThreadEventCategory::ExitFullscreen, handler, pipeline_id);
+        // NOTE: This steps should be running in parallel
+        // https://fullscreen.spec.whatwg.org/#exit-fullscreen
+        let script_msg = CommonScriptMsg::Task(
+            ScriptThreadEventCategory::ExitFullscreen,
+            handler,
+            pipeline_id,
+            TaskSourceName::DOMManipulation,
+        );
         let msg = MainThreadScriptMsg::Common(script_msg);
         window.main_thread_script_chan().send(msg).unwrap();