Intersection observer test with multiple thresholds. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS entries.length is 0 PASS entries.length is 1 PASS entries[0].boundingClientRect.left is 8 PASS entries[0].boundingClientRect.right is 108 PASS entries[0].boundingClientRect.top is 588 PASS entries[0].boundingClientRect.bottom is 688 PASS entries[0].intersectionRect.left is 8 PASS entries[0].intersectionRect.right is 108 PASS entries[0].intersectionRect.top is 588 PASS entries[0].intersectionRect.bottom is 600 PASS entries[0].rootBounds.left is 0 PASS entries[0].rootBounds.right is 785 PASS entries[0].rootBounds.top is 0 PASS entries[0].rootBounds.bottom is 600 PASS entries[0].target is [object HTMLDivElement] PASS entries.length is 2 PASS entries[1].boundingClientRect.left is 8 PASS entries[1].boundingClientRect.right is 108 PASS entries[1].boundingClientRect.top is 548 PASS entries[1].boundingClientRect.bottom is 648 PASS entries[1].intersectionRect.left is 8 PASS entries[1].intersectionRect.right is 108 PASS entries[1].intersectionRect.top is 548 PASS entries[1].intersectionRect.bottom is 600 PASS entries[1].rootBounds.left is 0 PASS entries[1].rootBounds.right is 785 PASS entries[1].rootBounds.top is 0 PASS entries[1].rootBounds.bottom is 600 PASS entries[1].target is [object HTMLDivElement] PASS entries.length is 3 PASS entries[2].boundingClientRect.left is 8 PASS entries[2].boundingClientRect.right is 108 PASS entries[2].boundingClientRect.top is 508 PASS entries[2].boundingClientRect.bottom is 608 PASS entries[2].intersectionRect.left is 8 PASS entries[2].intersectionRect.right is 108 PASS entries[2].intersectionRect.top is 508 PASS entries[2].intersectionRect.bottom is 600 PASS entries[2].rootBounds.left is 0 PASS entries[2].rootBounds.right is 785 PASS entries[2].rootBounds.top is 0 PASS entries[2].rootBounds.bottom is 600 PASS entries[2].target is [object HTMLDivElement] PASS entries.length is 4 PASS entries[3].boundingClientRect.left is 8 PASS entries[3].boundingClientRect.right is 108 PASS entries[3].boundingClientRect.top is 468 PASS entries[3].boundingClientRect.bottom is 568 PASS entries[3].intersectionRect.left is 8 PASS entries[3].intersectionRect.right is 108 PASS entries[3].intersectionRect.top is 468 PASS entries[3].intersectionRect.bottom is 568 PASS entries[3].rootBounds.left is 0 PASS entries[3].rootBounds.right is 785 PASS entries[3].rootBounds.top is 0 PASS entries[3].rootBounds.bottom is 600 PASS entries[3].target is [object HTMLDivElement] PASS entries.length is 5 PASS entries[4].boundingClientRect.left is 8 PASS entries[4].boundingClientRect.right is 108 PASS entries[4].boundingClientRect.top is -32 PASS entries[4].boundingClientRect.bottom is 68 PASS entries[4].intersectionRect.left is 8 PASS entries[4].intersectionRect.right is 108 PASS entries[4].intersectionRect.top is 0 PASS entries[4].intersectionRect.bottom is 68 PASS entries[4].rootBounds.left is 0 PASS entries[4].rootBounds.right is 785 PASS entries[4].rootBounds.top is 0 PASS entries[4].rootBounds.bottom is 600 PASS entries[4].target is [object HTMLDivElement] PASS entries.length is 6 PASS entries[5].boundingClientRect.left is 8 PASS entries[5].boundingClientRect.right is 108 PASS entries[5].boundingClientRect.top is -52 PASS entries[5].boundingClientRect.bottom is 48 PASS entries[5].intersectionRect.left is 8 PASS entries[5].intersectionRect.right is 108 PASS entries[5].intersectionRect.top is 0 PASS entries[5].intersectionRect.bottom is 48 PASS entries[5].rootBounds.left is 0 PASS entries[5].rootBounds.right is 785 PASS entries[5].rootBounds.top is 0 PASS entries[5].rootBounds.bottom is 600 PASS entries[5].target is [object HTMLDivElement] PASS entries.length is 7 PASS entries[6].boundingClientRect.left is 8 PASS entries[6].boundingClientRect.right is 108 PASS entries[6].boundingClientRect.top is -92 PASS entries[6].boundingClientRect.bottom is 8 PASS entries[6].intersectionRect.left is 8 PASS entries[6].intersectionRect.right is 108 PASS entries[6].intersectionRect.top is 0 PASS entries[6].intersectionRect.bottom is 8 PASS entries[6].rootBounds.left is 0 PASS entries[6].rootBounds.right is 785 PASS entries[6].rootBounds.top is 0 PASS entries[6].rootBounds.bottom is 600 PASS entries[6].target is [object HTMLDivElement] PASS entries.length is 8 PASS entries[7].boundingClientRect.left is 8 PASS entries[7].boundingClientRect.right is 108 PASS entries[7].boundingClientRect.top is -112 PASS entries[7].boundingClientRect.bottom is -12 PASS entries[7].intersectionRect.left is 0 PASS entries[7].intersectionRect.right is 0 PASS entries[7].intersectionRect.top is 0 PASS entries[7].intersectionRect.bottom is 0 PASS entries[7].rootBounds.left is 0 PASS entries[7].rootBounds.right is 785 PASS entries[7].rootBounds.top is 0 PASS entries[7].rootBounds.bottom is 600 PASS entries[7].target is [object HTMLDivElement] PASS successfullyParsed is true TEST COMPLETE