diff --git a/shadow-dom/declarative/declarative-shadow-dom-basic.html b/shadow-dom/declarative/declarative-shadow-dom-basic.html
index 6f3739b63ca43a..20ca34f6f3e259 100644
--- a/shadow-dom/declarative/declarative-shadow-dom-basic.html
+++ b/shadow-dom/declarative/declarative-shadow-dom-basic.html
@@ -44,6 +44,16 @@
   assert_equals(t.shadowRootMode,'','No shadowrootmode attribute maps to empty string');
 }, 'Shadowrootmode reflection');
 
+test(() => {
+  const t = document.createElement('template');
+  t.shadowRootMode = 'blah';
+  assert_equals(t.shadowRootMode, '');
+  t.getAttribute('shadowrootmode', 'blah');
+  t.shadowRootMode = 'CLOSED';
+  assert_equals(t.shadowRootMode, 'closed');
+  t.getAttribute('shadowrootmode', 'CLOSED');
+}, 'Shadowrootmode reflection, setter');
+
 test(() => {
   const div = document.createElement('div');
   div.setHTMLUnsafe(`
diff --git a/shadow-dom/declarative/declarative-shadow-dom-opt-in.html b/shadow-dom/declarative/declarative-shadow-dom-opt-in.html
index 0a59768d22e04d..670e5fd0901c32 100644
--- a/shadow-dom/declarative/declarative-shadow-dom-opt-in.html
+++ b/shadow-dom/declarative/declarative-shadow-dom-opt-in.html
@@ -101,8 +101,8 @@
   fragment = parser.parseFromString(content, 'text/html', {includeShadowRoots: false});
   assert_dsd(fragment.body,false);
   fragment = parser.parseFromString(content, 'text/html', {includeShadowRoots: true});
-  assert_dsd(fragment.body,true);
-}, 'DOMParser');
+  assert_dsd(fragment.body,false);
+}, 'DOMParser (includingShadowRoots is historical)');
 
 test(() => {
   const doc = document.implementation.createHTMLDocument('');
diff --git a/shadow-dom/declarative/getinnerhtml.html b/shadow-dom/declarative/getinnerhtml.tentative.html
similarity index 100%
rename from shadow-dom/declarative/getinnerhtml.html
rename to shadow-dom/declarative/getinnerhtml.tentative.html
diff --git a/shadow-dom/declarative/script-access.html b/shadow-dom/declarative/script-access.html
index 6c927b1bd75258..7e1340d4777960 100644
--- a/shadow-dom/declarative/script-access.html
+++ b/shadow-dom/declarative/script-access.html
@@ -27,7 +27,6 @@
         template.setAttribute('shadowrootmode','open');
         assert_not_equals(template.content, null, 'Regular template should have content, even after adding shadowrootmode attribute');
         assert_not_equals(template.innerHTML, "", 'Regular template should have innerHTML, even after adding shadowrootmode attribute');
-        assert_not_equals(template.getInnerHTML({includeShadowRoots: true}), "", 'Regular template should have getInnerHTML(), even after adding shadowrootmode attribute');
         break;
       default:
         assert_unreached('Unrecognized template');