Bug 1671179 - Make test_bug636336.html xorigin compatible, r=kmag

Differential Revision: https://phabricator.services.mozilla.com/D93604

dom/html/test/mochitest.ini

@@ -360,7 +360,6 @@ skip-if = toolkit == 'android' || os == 'mac' #TIMED_OUT # form control not sele
 [test_bug629801.html]
 [test_bug633058.html]
 [test_bug636336.html]
-fail-if = xorigin
 [test_bug641219.html]
 [test_bug643051.html]
 [test_bug646157.html]

dom/html/test/test_bug636336.html

@@ -26,7 +26,8 @@ function testIt(tag) {
   elem.setAttribute("src", " test ");
   is(elem.getAttribute("src"), " test ",
      tag + " src attribute setter should not strip whitespace around non-whitespace");
-  is(elem.src, window.location.href.replace(/test_bug636336\.html$/, "test"),
+  is(elem.src, window.location.href.replace(/\?.*/, "")
+                     .replace(/test_bug636336\.html$/, "test"),
      tag + ".src should strip whitespace as needed");
 }