LET url = @lab.cdn.dynamic + "?redirect=/iframe&src=/iframe"
LET page = DOCUMENT(url, { driver: 'cdp' })
LET original = FIRST(FRAMES(page, "name", "nested"))

INPUT(original, "#url_input", "https://getbootstrap.com/")
CLICK(original, "#submit")

WAIT_NAVIGATION(page, {
    frame: original
})

LET current = FIRST(FRAMES(page, "name", "nested"))

RETURN T::EQ(current.URL, "https://getbootstrap.com/")