This is a testharness.js-based test.
PASS Registering valid custom element types 
PASS Registering invalid custom element types should fail 
FAIL Registering forbidden custom element types should fail assert_throws: Exception should be thrown in case of attempt to register element with the name 'color-profile' function "function () {
            doc.registerElement(value);
        }" did not throw
Harness: the test ran to completion.

