CONSOLE ERROR: line 1: Uncaught ReferenceError: undefined_variable is not defined This is a testharness.js-based test. FAIL PASS window.onerror - runtime error in <script src=data:...> assert_equals: second arg expected "data:text/javascript,undefined_variable;" but got "" PASS window.onerror - runtime error in <script src=data:...> (column) Harness: the test ran to completion.