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Maybe someone can point an error in my test, but it seems that if I want to use a SVG filter in CSS encoding it as data: uri to avoid using an additional file, it fails if the data isn't encoded as base64.
I've tested with Firefox Aurora, other browsers don't seem to recognize the filter in neither case.
Test file:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style type="text/css">
#filter1 {
filter:url(data:image/svg+xml,<svg xmlns%3D"http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg"><filter id%3D"desaturate"><feColorMatrix type%3D"saturate" values%3D"0"%2F><%2Ffilter><%2Fsvg>#desaturate);
}
#filter2 {
filter:url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxmaWx0ZXIgaWQ9ImRlc2F0dXJhdGUiPjxmZUNvbG9yTWF0cml4IHR5cGU9InNhdHVyYXRlIiB2YWx1ZXM9IjAiLz48L2ZpbHRlcj48L3N2Zz4%3D#desaturate);
}
</style>
</head>
<body>
<p style="color:red" id=filter1>Filter applied "as is"</p>
<p style="color:red" id=filter2>This one is encoded as base64</p>
</body>
</html>
Live demo at http://martinezdelizarrondo.com/bugs/svgfilter.html
the contents of the url() is the same in both cases:
<svg xmlns="http://www.w3.org/2000/svg"><filter id="desaturate"><feColorMatrix type="saturate" values="0"/></filter></svg>
Encoded with http://software.hixie.ch/utilities/cgi/data/data
As you can see, the first one remains red, but in the second case the svg filter is applied and the text becomes gray.
Have I forgot about something in the first case?
In this bug I don't find anything about the encoding, so I guess that it should be possible (and certainly using a simpler text encoding is much better instead of "encrypting" it with base64)
Thanks
226
We can use SVG in CSS via data URI, but without encoding it works only in Webkit based browsers. If encode SVG using encodeURIComponent() it will work everywhere. SVG must have attribute xmlns like this: xmlns='http: //www.w3.org/2000/svg' . If it doesn't exist, it will be added automagically.
SVG images can be written directly into the HTML document using the <svg> </svg> tag. To do this, open the SVG image in VS code or your preferred IDE, copy the code, and paste it inside the <body> element in your HTML document. If you did everything correctly, your webpage should look exactly like the demo below.
Base64 is for encoding a binary data while . svg is just a file type for vector graphics for the web in a simple HTML-like style.
SVG images can be used as background-image in CSS as well, just like PNG, JPG, or GIF. All the same awesomeness of SVG comes along for the ride, like flexibility while retaining sharpness. Plus you can do anything a raster graphic can do, like repeat.
After more trials and errors I've found that using escape on the data works and now we just have to wait for other browsers to implement support for it.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style type="text/css">
#filterBase64 {
filter:url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxmaWx0ZXIgaWQ9ImRlc2F0dXJhdGUiPjxmZUNvbG9yTWF0cml4IHR5cGU9InNhdHVyYXRlIiB2YWx1ZXM9IjAiLz48L2ZpbHRlcj48L3N2Zz4%3D#desaturate);
}
#filterEscape {
filter:url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%3E%3Cfilter%20id%3D%22desaturate%22%3E%3CfeColorMatrix%20type%3D%22saturate%22%20values%3D%220%22/%3E%3C/filter%3E%3C/svg%3E#desaturate);
}
</style>
</head>
<body>
<p style="color:red" id=filterBase64>This one is encoded as base64</p>
<p style="color:red" id=filterEscape>Filter encoded with "escape()"</p>
<p style="color:red" id=filterScript>This one is applied with javascript</p>
<script>
document.getElementById("filterScript").style.filter="url(data:image/svg+xml," + escape('<svg xmlns="http://www.w3.org/2000/svg"><filter id="desaturate"><feColorMatrix type="saturate" values="0"/></filter></svg>') + "#desaturate)";
</script>
</body>
</html>
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