From dcf02caf81284246d8fd6ee4a09161733bd9310a Mon Sep 17 00:00:00 2001
From: Josh Matthews <josh@joshmatthews.net>
Date: Sat, 20 May 2023 18:32:08 -0400
Subject: [PATCH] Enter realms when creating special same-origin iframes.

---
 components/script/dom/servoparser/mod.rs | 3 +++
 components/script/script_thread.rs       | 1 +
 2 files changed, 4 insertions(+)

diff --git a/components/script/dom/servoparser/mod.rs b/components/script/dom/servoparser/mod.rs
index 6b5df0e9768..c4b52a038ea 100644
--- a/components/script/dom/servoparser/mod.rs
+++ b/components/script/dom/servoparser/mod.rs
@@ -919,6 +919,7 @@ impl FetchResponseListener for ParserContext {
         if parser.aborted.get() {
             return;
         }
+        let _realm = enter_realm(&*parser);
         parser.parse_bytes_chunk(payload);
     }
 
@@ -934,6 +935,8 @@ impl FetchResponseListener for ParserContext {
             return;
         }
 
+        let _realm = enter_realm(&*parser);
+
         match status {
             // are we throwing this away or can we use it?
             Ok(_) => (),
diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index 325944d33c2..96ea03881d4 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -1649,6 +1649,7 @@ impl ScriptThread {
             // https://html.spec.whatwg.org/multipage/#the-end step 6
             let mut docs = self.docs_with_no_blocking_loads.borrow_mut();
             for document in docs.iter() {
+                let _realm = enter_realm(&**document);
                 document.maybe_queue_document_completion();
             }
             docs.clear();