<dom-module id="list-test">
    <template>

        <template is="dom-repeat" items="{{ items }}" sort="sort">

            <div>{{ item }}</div>

        </template>

        <button on-tap="removeItems">Remote first 11 items</button>

    </template>

    <script>

        Polymer({
            is: "list-test",
            properties: {
                items: {
                    type: Array,
                    value: [0,1,2,3,4,5,6,7,8,9,10,11]
                }
            },
            sort: function(a, b) {
                return a - b;
            },
            removeItems: function() {
                // This causes an exception
                // Removing less than 11 items is fine for some reason
                this.splice("items", 0, 11);
            }
        });

    </script>
</dom-module>