Bug 1528746 [wpt PR 15406] - Update wpt metadata, a=testonly

wpt-pr: 15406
wpt-type: metadata

Author: moz-wptsync-bot

testing/web-platform/meta/html/dom/interfaces.https.html.ini

@@ -356,11 +356,11 @@ prefs: [dom.security.featurePolicy.enabled:true]
 
   [Window interface: window must inherit property "print()" with the proper type]
     expected:
-      if (os == "android"): FAIL
+      if os == "android": FAIL
 
   [Window interface: operation print()]
     expected:
-      if (os == "android"): FAIL
+      if os == "android": FAIL
 
   [Window interface: window must have own property "window"]
     expected:
@@ -702,6 +702,18 @@ prefs: [dom.security.featurePolicy.enabled:true]
   [HTMLElement interface: attribute autocapitalize]
     expected: FAIL
 
+  [HTMLFormElement interface: attribute rel]
+    expected: FAIL
+
+  [HTMLFormElement interface: attribute relList]
+    expected: FAIL
+
+  [HTMLFormElement interface: document.createElement("form") must inherit property "rel" with the proper type]
+    expected: FAIL
+
+  [HTMLFormElement interface: document.createElement("form") must inherit property "relList" with the proper type]
+    expected: FAIL
+
 
 [interfaces.https.html?exclude=(Document|Window|HTML.*)]
   [AudioTrackList interface: existence and properties of interface object]