I have developed a polymer element. In this element I receive some parameters. When I pass [value array] parameter to element does not work. But if I put the values manually, it works.

This is the polymer element head:

<polymer-element name="nick-viewer-card" attributes="program details link chart">

This is the code problem:

    <div class="heading" on-click="{{ toggle }}">{{ program }}</div>
    <core-collapse id="collapse">
        <div class="content">
            <div>{{ details }}</div>
            <div><a href="{{ link }}"> more details</a></div>
            <div>{{ chart }}</div>
            <chart-pie
                width="150"
                height="150"
                values="[30, 50, 100, 40, 120]"> <!-- {{ chart }} -->
            </chart-pie>
        </div>
    </core-collapse>

And this is the invocation:

        <nick-viewer-card program="{{gsx$program.$t}}" details="{{gsx$details.$t}}"
            link="{{gsx$link.$t}}" chart="{{gsx$chart.$t}}"></nick-viewer-card>

I included #mudasobwa suggestiong:

            <div>{{ chart }}</div>
            <div><a href="{{ link }}"> more details</a></div>
            <chart-pie
                width="150"
                height="150"
                values="{{ chart }}">
            </chart-pie>

This is the output:

and the console error is related the type: