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I've got an SVG object that contains a linear gradient embedded directly in a document. It works fine in Chrome and Firefox, but in Safari nothing is rendered. If I create the SVG as a file and embed it using the Object tag, it works fine in Safari. Other shapes and fills work, it's just linear gradient that doesn't work. I guess I could use the object, but I'd prefer to embed the SVG directly.
I've create a demo here (works in Chrome, not Safari): http://jsfiddle.net/sjKbN/
I came across this answer which suggests setting the content type to application/xhtml+xml, but this in itself seems to cause other problems.
Just wondering if anyone had come across any other fixes or ideas to get this working.
522
Safari supports two types of CSS gradients: linear and radial.
The x1, x2, y1,y2 attributes of the <linearGradient> tag define the start and end position of the gradient. The color range for a gradient can be composed of two or more colors. Each color is specified with a <stop> tag. The offset attribute is used to define where the gradient color begin and end.
SVG provides for two types of gradients: linear gradients and radial gradients. Once defined, gradients are then referenced using 'fill' or 'stroke' properties on a given graphics element to indicate that the given element shall be filled or stroked with the referenced gradient.
To use a gradient, we have to reference it from an object's fill or stroke attributes. This is done the same way you reference elements in CSS, using a url . In this case, the url is just a reference to our gradient, which I've given the creative ID, "Gradient". To attach it, set the fill to url(#Gradient) , and voila!
Your gradient will work in Safari if you wrap a defs tag around it:
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
width="300px" height="300px" viewBox="0 0 300 300" enable-background="new 0 0 300 300" xml:space="preserve">
<defs>
<linearGradient id="SVGID_1_" gradientUnits="userSpaceOnUse" x1="5.6665" y1="149.5" x2="293.333" y2="149.5">
<stop offset="0" style="stop-color:#FFF33B"/>
<stop offset="0.0595" style="stop-color:#FFE029"/>
<stop offset="0.1303" style="stop-color:#FFD218"/>
<stop offset="0.2032" style="stop-color:#FEC90F"/>
<stop offset="0.2809" style="stop-color:#FDC70C"/>
<stop offset="0.6685" style="stop-color:#F3903F"/>
<stop offset="0.8876" style="stop-color:#ED683C"/>
<stop offset="1" style="stop-color:#E93E3A"/>
</linearGradient>
</defs>
<rect x="5.667" y="5.333" fill="url(#SVGID_1_)" width="287.667" height="288.333"/>
</svg>
It seems that wrapping your references in defs is encouraged but not obligatory according to spec. So this is a bug in Safari.
116
About Alpha : It seems that Safari (7 at this moment) does not cover SVG color alpha channel, use stop opacity attribute. it works fine!
<stop stop-color="rgba(x,y,z,0.5)"> //safari does not work
<stop stop-color="rgb(x,y,z)" stop-opacity="0.5"> //ok
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