27221 2014-11-03 13:48:44 +0000 What happens on feImage without valid resource? 2017-12-24 06:43:24 +0000 1 1 1 Unclassified CSS Filter Effects unspecified PC All RESOLVED MOVED http://dev.w3.org/fxtf/filters/#issue-9b2e4b2e P2 normal --- 1 dschulze dino cmarrin eoconnor smfr public-css-bugzilla oldest_to_newest 114428 0 1531 dschulze 2014-11-03 13:48:44 +0000 Created attachment 1531 Example missing reference What happens if xlink:href of feImage references an invalid or not existing resource? The attached example has an feImage element that references a non-existent image. It is for testing purpose in different browsers. The test starts with inverting the SourceGraphic color so that we know if a filter was applied to the element or not. The it references the not existing image. The test also applies a subregion on the feImage element. Then the opacity of the feImage result gets inverted. Then we composite the previous result on top of the inverted SourceGraphic. 114429 1 dschulze 2014-11-03 14:02:21 +0000 The result on various SVG viewers: Chrome: You see a "missing image" icon covering the top left quarter of an aqua colored square. Safari: You see a "missing image" icon covering the top left quarter of an aqua colored square. Firefox: You just see an aqua colored square. Opera (Presto): You see a black square covering the top left quarter of an aqua colored square. IE 11: You see a black square covering the top left quarter of an aqua colored square. InkScape: Crashes on windows. Batik: You see a "missing image" icon covering the top left quarter of an aqua colored square. Illustrator: You just see an aqua colored square. All viewers do apply the filter regardless of the missing image resource. But the behavior is pretty different across browsers. IE, Opera: Missing image is treated as transparent black. Firefox, Illustrator: Missing image acts as a null filter even for filter primitives applied on top of feImage. Safari, Chrome: General behavior as for IE, Opera but taking the "missing image" instead of transparent black. 129036 2 dschulze 2017-12-24 06:43:24 +0000 Moved: https://github.com/w3c/fxtf-drafts/issues/193 1531 2014-11-03 13:48:44 +0000 2014-11-03 13:48:44 +0000 Example missing reference missing-reference.svg image/svg+xml 629 dschulze PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRw Oi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB3aWR0aD0iMjAwIiBoZWlnaHQ9IjIwMCI+Cgk8Zmls dGVyIGlkPSJmIiB4PSIwJSIgeT0iMCUiIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPgoJCTxm ZUNvbXBvbmVudFRyYW5zZmVyIHJlc3VsdD0iaW52ZXJ0Ij4KCQkJPGZlRnVuY1IgdHlwZT0idGFi bGUiIHRhYmxlVmFsdWVzPSIxIDAiLz4KCQkJPGZlRnVuY0cgdHlwZT0idGFibGUiIHRhYmxlVmFs dWVzPSIxIDAiLz4KCQkJPGZlRnVuY0IgdHlwZT0idGFibGUiIHRhYmxlVmFsdWVzPSIxIDAiLz4K CQk8L2ZlQ29tcG9uZW50VHJhbnNmZXI+CgkJPGZlSW1hZ2UgeGxpbms6aHJlZj0iaHR0cDovL25v bnNlbnNlLmNvbS9pbWFnZS5wbmciIHdpZHRoPSI1MCUiIGhlaWdodD0iNTAlIi8+CgkJPGZlQ29s b3JNYXRyaXggdmFsdWVzPSIxIDAgMCAwIDAgIDAgMSAwIDAgMCAgMCAwIDEgMCAwICAwIDAgMCAx IDEiIC8+CgkJPGZlQ29tcG9zaXRlIGluMj0iaW52ZXJ0Ii8+Cgk8L2ZpbHRlcj4KCTxyZWN0IHdp ZHRoPSIyMDAiIGhlaWdodD0iMjAwIiBmaWxsPSJyZWQiIGZpbHRlcj0idXJsKCNmKSIvPgo8L3N2 Zz4=