From 9798373d5e27ab10645a230c08262d3675d3338e Mon Sep 17 00:00:00 2001
From: CYBAI <cyb.ai.815@gmail.com>
Date: Sun, 7 Jun 2020 12:19:00 +0900
Subject: [PATCH] Enter incumbent script to ensure it has incumbent global

---
 components/script/dom/readablestream.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/script/dom/readablestream.rs b/components/script/dom/readablestream.rs
index 1c6ac242e9be..90e6c72da708 100644
--- a/components/script/dom/readablestream.rs
+++ b/components/script/dom/readablestream.rs
@@ -6,7 +6,7 @@ use crate::dom::bindings::conversions::{ConversionBehavior, ConversionResult};
 use crate::dom::bindings::error::Error;
 use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
 use crate::dom::bindings::root::DomRoot;
-use crate::dom::bindings::settings_stack::AutoEntryScript;
+use crate::dom::bindings::settings_stack::{AutoEntryScript, AutoIncumbentScript};
 use crate::dom::bindings::utils::get_dictionary_property;
 use crate::dom::globalscope::GlobalScope;
 use crate::dom::promise::Promise;
@@ -118,6 +118,7 @@ impl ReadableStream {
         source: ExternalUnderlyingSource,
     ) -> DomRoot<ReadableStream> {
         let _ar = enter_realm(global);
+        let _ais = AutoIncumbentScript::new(global);
         let cx = global.get_cx();
 
         let source = Rc::new(ExternalUnderlyingSourceController::new(source));