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[intersection-observer] Test isIntersecting change events #7215
This is a test for the change introduced in w3c/IntersectionObserver#245. The main difference with the previous version of the spec is that the observer fires events when
On my machine, Chrome 60 and Edge 16 prerelease (e.g. public insider 16275) pass the 5 new tests, whereas Firefox Nightly (57.0a1 2017-08-31) does not. This is to be expected given discussion in w3c/IntersectionObserver#222.
foolip left a comment
Manually confirmed http://w3c-test.org/submissions/7215/intersection-observer/isIntersecting-change-events.html to be passing in Chrome, Edge and Firefox. Safari fails with "Can't find variable: IntersectionObserver"