This test checks the SVGViewSpec API On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Check initial SVGSVGElement.currentView values on a SVGSVGElement PASS currentView.transform.numberOfItems is 0 PASS currentView.viewTarget is null PASS currentView.zoomAndPan is SVGViewElement.SVG_ZOOMANDPAN_MAGNIFY PASS currentView.viewBox.baseVal.x is 0 PASS currentView.viewBox.baseVal.y is 0 PASS currentView.viewBox.baseVal.width is 0 PASS currentView.viewBox.baseVal.height is 0 PASS currentView.preserveAspectRatio.baseVal.align is SVGPreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMIDYMID PASS currentView.preserveAspectRatio.baseVal.meetOrSlice is SVGPreserveAspectRatio.SVG_MEETORSLICE_MEET PASS currentView.viewBoxString is "0 0 0 0" PASS currentView.preserveAspectRatioString is "xMidYMid meet" PASS currentView.transformString is "" PASS currentView.viewTargetString is "" PASS currentView.zoomAndPan is SVGViewElement.SVG_ZOOMANDPAN_MAGNIFY Try changing zoomAndPan - none of these will work, as SVGViewSpec is fully readonly - even the animated properties it inherits from parent classes like SVGZoomAndPan/SVGFitToViewBox PASS currentView.zoomAndPan = SVGViewElement.SVG_ZOOMANDPAN_DISABLE threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.zoomAndPan is SVGViewElement.SVG_ZOOMANDPAN_MAGNIFY Try changing viewBox - this has no affect on the SVGSVGElement the viewSpec belongs to - it exposed all its properties as read-only PASS currentView.viewBox.baseVal.x = 10 threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.viewBox.baseVal.x is 0 PASS currentView.viewBox.baseVal.y = 20 threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.viewBox.baseVal.y is 0 PASS currentView.viewBox.baseVal.width = 50 threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.viewBox.baseVal.width is 0 PASS currentView.viewBox.baseVal.height = 100 threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.viewBox.baseVal.height is 0 PASS currentView.viewBoxString is "0 0 0 0" Try changing viewBoxString PASS currentView.viewBoxString = '1 2 3 4' is "1 2 3 4" PASS currentView.viewBoxString is "0 0 0 0" Try changing preserveAspectRatio PASS currentView.preserveAspectRatio.baseVal.align = SVGPreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMINYMIN threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.preserveAspectRatio.baseVal.align is SVGPreserveAspectRatio.SVG_PRESERVEASPECTRATIO_XMIDYMID PASS currentView.preserveAspectRatio.baseVal.meetOrSlice = SVGPreserveAspectRatio.SVG_MEETORSLICE_SLICE threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.preserveAspectRatio.baseVal.meetOrSlice is SVGPreserveAspectRatio.SVG_MEETORSLICE_MEET Try changing preserveAspectRatioString PASS currentView.preserveAspectRatioString = 'xMinYMin slice' is "xMinYMin slice" PASS currentView.preserveAspectRatioString is "xMidYMid meet" Try changing transformString PASS currentView.transformString = 'rotate(90)' is "rotate(90)" PASS currentView.transformString is "" Try changing viewTarget PASS currentView.viewTarget = svgElement is svgElement PASS currentView.viewTarget is null Try changing viewTargetString PASS currentView.viewTargetString = '#test' is "#test" PASS currentView.viewTargetString is "" Try changing transform PASS currentView.transform.clear() threw exception Error: NoModificationAllowedError: DOM Exception 7. PASS currentView.transform.numberOfItems is 0 PASS successfullyParsed is true TEST COMPLETE