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<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<svg xmlns="http://www.w3.org/2000/svg">
<title>Test 'feMorphology' with a negative value for its 'radius'</title>
<!--
From https://bugzilla.mozilla.org/show_bug.cgi?id=485786 and
https://bugzilla.mozilla.org/show_bug.cgi?id=1432250
The negative value should disable the primitive effect and output
the input image.
-->
<filter id="f1">
<feMorphology operator="dilate" radius="-1"/>
</filter>
<filter id="f2">
<feMorphology operator="dilate" radius="-1 50"/>
</filter>
<rect width="100%" height="100%" fill="red"/>
<rect width="50%" height="100%" fill="lime" filter="url(#f1)"/>
<rect x="50%" width="50%" height="100%" fill="lime" filter="url(#f2)"/>
</svg>
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