diff --git a/Cargo.lock b/Cargo.lock
index e4c617c4b4e..5545a73432e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3808,7 +3808,7 @@ dependencies = [
 [[package]]
 name = "mozjs"
 version = "0.14.1"
-source = "git+https://github.com/servo/rust-mozjs#fe738cca3320ffcbc4c520ced79c2141ceabf42d"
+source = "git+https://github.com/servo/rust-mozjs#a8b688ad32a852172536443d77baa844f59a23fa"
 dependencies = [
  "cc",
  "lazy_static",
diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py
index 1f7a43ba831..353e690baaf 100644
--- a/components/script/dom/bindings/codegen/CodegenRust.py
+++ b/components/script/dom/bindings/codegen/CodegenRust.py
@@ -3477,6 +3477,9 @@ let traps = ProxyTraps {
     delete_: Some(%(delete)s),
     enumerate: None,
     getPrototypeIfOrdinary: Some(proxyhandler::get_prototype_if_ordinary),
+    getPrototype: None,
+    setPrototype: None,
+    setImmutablePrototype: None,
     preventExtensions: Some(proxyhandler::prevent_extensions),
     isExtensible: Some(proxyhandler::is_extensible),
     has: None,
diff --git a/components/script/dom/windowproxy.rs b/components/script/dom/windowproxy.rs
index 0f92e4b3367..244b42dc8a5 100644
--- a/components/script/dom/windowproxy.rs
+++ b/components/script/dom/windowproxy.rs
@@ -1040,6 +1040,8 @@ unsafe extern "C" fn get_prototype_if_ordinary(
 }
 
 static PROXY_HANDLER: ProxyTraps = ProxyTraps {
+    // TODO: These traps should change their behavior depending on
+    //       `IsPlatformObjectSameOrigin(this.[[Window]])`
     enter: None,
     getOwnPropertyDescriptor: Some(getOwnPropertyDescriptor),
     defineProperty: Some(defineProperty),
@@ -1047,6 +1049,9 @@ static PROXY_HANDLER: ProxyTraps = ProxyTraps {
     delete_: None,
     enumerate: None,
     getPrototypeIfOrdinary: Some(get_prototype_if_ordinary),
+    getPrototype: None, // TODO: return `null` if cross origin-domain
+    setPrototype: None,
+    setImmutablePrototype: None,
     preventExtensions: None,
     isExtensible: None,
     has: Some(has),
@@ -1189,6 +1194,9 @@ static XORIGIN_PROXY_HANDLER: ProxyTraps = ProxyTraps {
     delete_: Some(delete_xorigin),
     enumerate: None,
     getPrototypeIfOrdinary: None,
+    getPrototype: None,
+    setPrototype: None,
+    setImmutablePrototype: None,
     preventExtensions: Some(preventExtensions_xorigin),
     isExtensible: None,
     has: Some(has_xorigin),