CONSOLE ERROR: Uncaught TypeError: Failed to construct 'CustomElement': The result must implement HTMLElement interface
CONSOLE ERROR: Uncaught TypeError: Failed to construct 'CustomElement': The result must implement HTMLElement interface
CONSOLE ERROR: line 35: Uncaught ReferenceError: Must call super constructor in derived class before accessing 'this' or returning from derived constructor
CONSOLE ERROR: Uncaught Bad
CONSOLE ERROR: line 1401: Uncaught Error: Tried to create a test with file_is_test
