The following tests: svg/dynamic-updates/SVGFEDropShadowElement-dom-shadow-color-attr.html svg/dynamic-updates/SVGFEDropShadowElement-dom-shadow-opacity-attr.html svg/dynamic-updates/SVGFEDropShadowElement-svgdom-shadow-color-prop.html svg/dynamic-updates/SVGFEDropShadowElement-svgdom-shadow-opacity-prop.html either render the drop shadow when they should not, or render it with the wrong color.
*** This bug has been marked as a duplicate of bug 99996 ***