Function is_in_browser_main_thread

src/urllib3/contrib/emscripten/fetch.py:410–411

()

# check if we are in a worker or not
def is_in_browser_main_thread() -> bool:
    return hasattr(js, "window") and hasattr(js, "self") and js.self == js.window


def is_cross_origin_isolated() -> bool: