diff --git a/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/structuredclone_0.html b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/structuredclone_0.html
index 13078ffc2eeb..34d07df85a86 100644
--- a/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/structuredclone_0.html
+++ b/testing/web-platform/tests/html/infrastructure/safe-passing-of-structured-data/structuredclone_0.html
@@ -150,6 +150,28 @@
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+.
+getPrototypeOf
+(
+e
+.
+data
+)
+DOMException
+.
+prototype
+"
+Checking
+prototype
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+constructor
+DOMException
+"
+Checking
+constructor
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+name
+"
+IndexSizeError
+"
+"
+Checking
+name
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+message
+"
+some
+message
+"
+"
+Checking
+message
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+code
+DOMException
+.
+INDEX_SIZE_ERR
+"
+Checking
+code
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+foo
+undefined
+"
+Checking
+custom
+property
+"
+)
+;
+}
+)
+;
+t
+.
+step
+(
+function
+(
+)
+{
+const
+error
+=
+new
+DOMException
+(
+"
+some
+message
+"
+"
+IndexSizeError
+"
+)
+;
+worker
+.
+postMessage
+(
+error
+)
+;
+}
+)
+;
+}
+function
+(
+)
+{
+var
+t
+=
+async_test
+(
+"
+DOMException
+objects
+created
+by
+the
+UA
+can
+be
+cloned
+"
+)
+;
+t
+.
+id
+=
+40
+;
+worker
+.
+onmessage
+=
+t
+.
+step_func_done
+(
+function
+(
+e
+)
+{
+assert_equals
+(
+Object
+.
+getPrototypeOf
+(
+e
+.
+data
+)
+DOMException
+.
+prototype
+"
+Checking
+prototype
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+constructor
+DOMException
+"
+Checking
+constructor
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+code
+DOMException
+.
+DATA_CLONE_ERR
+"
+Checking
+code
+"
+)
+;
+assert_equals
+(
+e
+.
+data
+.
+name
+"
+DataCloneError
+"
+"
+Checking
+name
+"
+)
+;
+}
+)
+;
+t
+.
+step
+(
+function
+(
+)
+{
+try
+{
+worker
+.
+postMessage
+(
+window
+)
+;
+}
+catch
+(
+error
+)
+{
+worker
+.
+postMessage
+(
+error
+)
+;
+return
+;
+}
+assert_unreached
+(
+"
+Window
+must
+not
+be
+clonable
+"
+)
+;
+}
+)
+;
+}
 ]
 ;
 }