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Linear Gradients not working? [SVG]

See original GitHub issue

Hi, I am attempting linear gradients, but they do not work. Here is how it is done in the code:

<?xml version="1.0" encoding="UTF-8"?>
<svg version="1.1" baseProfile="tiny" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="512" width="512">

	<defs>
		<linearGradient id="LinearGradient" x1="0" x2="0" y1="0" y2="1">
			<stop offset="0%" stop-color="#ff0000"/>
			<stop offset="50%" stop-color="#ffffff"/>
			<stop offset="100%" stop-color="#0000ff"/>
		</linearGradient>
				<linearGradient id="LinearGradient2" x1="0" x2="0" y1="0" y2="1">
			<stop offset="0%" stop-color="#ff0000"/>
			<stop offset="100%" stop-color="#ffffff"/>
		</linearGradient>
				<linearGradient id="LinearGradient3">
			<stop offset="0%" stop-color="#ff0000"/>
			<stop offset="100%" stop-color="#0000ff"/>
					</linearGradient>
	</defs>
	<filter id="blurMe">
		<feGaussianBlur in="SourceGraphic" stdDeviation="5" />
	</filter>
	
	<circle id="templateCircle" cx="128" cy="128" r="128" fill="url(#LinearGradient)" visibility="visible" />
	<circle id="templateCircle2" cx="128" cy="384" r="128" fill="url(#LinearGradient2)" visibility="visible" />
	<circle id="templateCircle3" cx="384" cy="128" r="128" fill="url(#LinearGradient3)" visibility="visible" />
	<circle id="templateCircle4" cx="384" cy="384" r="64" fill="#ff0000" filter="url(#blurMe)" visibility="visible" />
</svg>

And here is a link to the SVG online: http://quakeulf.suxos.org/bilder/bearbeidet/variabelen/SVG/test7.svg

But when running this on an Android phone all we get are single-coloured shapes and no gradients.

What are we doing wrong? Please help.