diff --git a/testing/web-platform/tests/trusted-types/Element-setAttribute-respects-Elements-node-documents-globals-CSP-after-adoption-from-TT-realm.html b/testing/web-platform/tests/trusted-types/Element-setAttribute-respects-Elements-node-documents-globals-CSP-after-adoption-from-TT-realm.html
new file mode 100644
index 000000000000..d5a22ba65baa
--- /dev/null
+++ b/testing/web-platform/tests/trusted-types/Element-setAttribute-respects-Elements-node-documents-globals-CSP-after-adoption-from-TT-realm.html
@@ -0,0 +1,574 @@
+<
+!
+DOCTYPE
+html
+>
+<
+html
+>
+<
+head
+>
+<
+meta
+charset
+=
+"
+utf
+-
+8
+"
+/
+>
+<
+script
+src
+=
+"
+/
+resources
+/
+testharness
+.
+js
+"
+>
+<
+/
+script
+>
+<
+script
+src
+=
+"
+/
+resources
+/
+testharnessreport
+.
+js
+"
+>
+<
+/
+script
+>
+<
+/
+head
+>
+<
+body
+>
+<
+script
+>
+const
+iframeSrcdoc
+=
+<
+!
+DOCTYPE
+html
+>
+<
+head
+>
+<
+meta
+charset
+=
+"
+utf
+-
+8
+"
+>
+<
+meta
+http
+-
+equiv
+=
+"
+Content
+-
+Security
+-
+Policy
+"
+content
+=
+"
+require
+-
+trusted
+-
+types
+-
+for
+'
+script
+'
+"
+/
+>
+<
+/
+head
+>
+<
+body
+>
+<
+div
+id
+=
+"
+nonSVGTestElements
+"
+>
+<
+iframe
+id
+=
+"
+iframe
+.
+srcdoc
+"
+srcdoc
+=
+"
+v
+"
+>
+<
+/
+iframe
+>
+<
+script
+id
+=
+"
+script
+.
+src
+"
+src
+=
+"
+v
+"
+>
+<
+\
+/
+script
+>
+<
+/
+div
+>
+<
+svg
+id
+=
+"
+svgTestElements
+"
+>
+<
+script
+id
+=
+"
+script
+.
+href
+"
+href
+=
+"
+v
+"
+>
+<
+\
+/
+script
+>
+<
+script
+id
+=
+"
+script
+.
+xlink
+:
+href
+"
+xlink
+:
+href
+=
+"
+v
+"
+>
+<
+\
+/
+script
+>
+<
+/
+svg
+>
+<
+/
+body
+>
+;
+const
+testCases
+=
+[
+[
+'
+iframe
+'
+'
+srcdoc
+'
+]
+[
+'
+script
+'
+'
+src
+'
+]
+[
+'
+script
+'
+'
+href
+'
+]
+[
+'
+script
+'
+'
+xlink
+:
+href
+'
+]
+]
+;
+const
+sourceFrame
+=
+document
+.
+createElement
+(
+"
+iframe
+"
+)
+;
+sourceFrame
+.
+srcdoc
+=
+iframeSrcdoc
+;
+document
+.
+body
+.
+append
+(
+sourceFrame
+)
+;
+sourceFrame
+.
+addEventListener
+(
+"
+load
+"
+(
+)
+=
+>
+{
+testCases
+.
+forEach
+(
+testCase
+=
+>
+{
+async_test
+(
+t
+=
+>
+{
+t
+.
+step_func_done
+(
+(
+)
+=
+>
+{
+const
+elementId
+=
+testCase
+.
+join
+(
+"
+.
+"
+)
+;
+const
+sourceElement
+=
+sourceFrame
+.
+contentWindow
+.
+document
+.
+getElementById
+(
+elementId
+)
+;
+const
+sourceAttr
+=
+sourceElement
+.
+getAttributeNode
+(
+testCase
+[
+1
+]
+)
+;
+sourceElement
+.
+removeAttributeNode
+(
+sourceAttr
+)
+;
+document
+.
+body
+.
+append
+(
+sourceElement
+)
+;
+/
+/
+Now
+sourceElement
+'
+s
+node
+document
+'
+s
+global
+should
+belong
+to
+/
+/
+a
+non
+-
+TT
+realm
+.
+/
+/
+Hence
+below
+calls
+of
+setAttributeNode
+and
+setAttributeNS
+/
+/
+should
+not
+throw
+.
+/
+/
+See
+the
+analogous
+test
+/
+/
+<
+Element
+-
+setAttribute
+-
+respects
+-
+Elements
+-
+node
+-
+documents
+-
+globals
+-
+CSP
+-
+after
+-
+adoption
+-
+from
+-
+TT
+-
+realm
+.
+html
+>
+/
+/
+for
+details
+about
+the
+relevant
+specs
+.
+sourceElement
+.
+setAttributeNode
+(
+sourceAttr
+)
+;
+sourceElement
+.
+setAttributeNS
+(
+sourceAttr
+.
+namespaceURI
+sourceAttr
+.
+name
+sourceAttr
+.
+value
+)
+;
+assert_true
+(
+true
+"
+Neither
+setAttributeNode
+nor
+setAttributeNS
+threw
+"
+)
+;
+}
+)
+(
+)
+;
+}
+Trusted
+types
+are
+not
+enforced
+for
+setAttributeNode
+and
+setAttributeNS
+after
+moving
+the
+target
+node
+from
+a
+TT
+-
+realm
+to
+a
+non
+-
+TT
+realm
+for
+{
+testCase
+[
+0
+]
+}
+.
+{
+testCase
+[
+1
+]
+}
+)
+;
+}
+)
+;
+}
+)
+;
+<
+/
+script
+>
+<
+/
+body
+>
+<
+/
+html
+>