Normally, the <clipPath> element hides everything that is outside the clip path. To achieve the opposite effect - that is to "cut out" something from the image - i want to use two paths in the clipPath and the clip-rule="evenodd" attribute. Basically, I want to "xor" the clip paths.

But it doesn't work. It shows the region "ORed":

<clipPath clip-rule="evenodd" id="imageclippath" clipPathUnits = "objectBoundingBox">
        <rect clip-rule="evenodd" x="0.3" y="0.3" height="0.6" width="6" />
        <rect clip-rule="evenodd" x="0" y="0" height="0.5" width="0.5" />
    </clipPath>     

 <rect clip-path="url(#imageclippath)" x="0" y="0" height="500" width="500" fill="red"/>

EDIT:

My problem is that AFAIK <mask> doesn't work in iOS WebKit.

svg clipping masking
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