This is a wdspec test.
[FAIL] test_web_window_reference_created_in_classic
webdriver.error.JavascriptErrorException: javascript error (500): javascript error: circular reference
[FAIL] test_web_frame_reference_created_in_classic
webdriver.error.JavascriptErrorException: javascript error (500): javascript error: circular reference
[FAIL] test_web_window_reference_created_in_bidi
AssertionError: assert None == 'bar'
[FAIL] test_web_frame_reference_created_in_bidi
AssertionError: assert None == 'foo'
Harness: the test ran to completion.