third_party/WebIDL/transferable.patch

diff --git a/third_party/WebIDL/WebIDL.py b/third_party/WebIDL/WebIDL.py
index 40e118e3781..bad5cbe54ca 100644
--- a/third_party/WebIDL/WebIDL.py
+++ b/third_party/WebIDL/WebIDL.py
@@ -2106,6 +2106,7 @@ class IDLInterface(IDLInterfaceOrNamespace):
                 or identifier == "Serializable"
                 or identifier == "Abstract"
                 or identifier == "Inline"
+                or identifier == "Transferable"
             ):
                 # Known extended attributes that do not take values
                 if not attr.noArguments():