Harness status: OK Found 9 tests 9 Pass Pass IntersectionObserver constructor with { threshold: [1.1] } Pass IntersectionObserver constructor with { threshold: ["foo"] } Pass IntersectionObserver constructor with { rootMargin: "1" } Pass IntersectionObserver constructor with { rootMargin: "2em" } Pass IntersectionObserver constructor with { rootMargin: "auto" } Pass IntersectionObserver constructor with { rootMargin: "calc(1px + 2px)" } Pass IntersectionObserver constructor with { rootMargin: "1px !important" } Pass IntersectionObserver constructor with { rootMargin: "1px 1px 1px 1px 1px" } Pass IntersectionObserver.observe("foo")