app/java/src/main/resources/templates/index.html [37:78]:
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        <form action="/">
        <select name="age" id="age">
            <option value="Adult">Adult</option>
            <option value="Juvenile">Juvenile</option>
        </select>

        <select name="fur" id="fur">
            <option value="Gray">Gray</option>
            <option value="Black">Black</option>
            <option value="Cinnamon">Cinnamon</option>
        </select>

        squirrels were observed

        <select name="location" id="location">
            <option value="Above Ground">Above Ground</option>
            <option value="Ground Plane">on the Ground Plane</option>
        </select>.

        <button id="submit">Update</button>
        </form>

        <script>
        // Select dropdowns from querystring

        this_url = new URL(window.location.href)

        selected_fur = this_url.searchParams.get("fur");
        document.querySelector('option[value="'+selected_fur+'"]').selected = true

        selected_location = this_url.searchParams.get("location");
        document.querySelector('option[value="'+selected_location+'"]').selected = true

        selected_age = this_url.searchParams.get("age");
        document.querySelector('option[value="'+selected_age+'"]').selected = true

        </script>

    </div>

    <div id="chart" style="height: 500px; width: 500px">
        <canvas id="chart_canvas"></canvas>
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app/nodejs/views/index.handlebars [37:78]:
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        <form action="/">
        <select name="age" id="age">
            <option value="Adult">Adult</option>
            <option value="Juvenile">Juvenile</option>
        </select>

        <select name="fur" id="fur">
            <option value="Gray">Gray</option>
            <option value="Black">Black</option>
            <option value="Cinnamon">Cinnamon</option>
        </select>

        squirrels were observed

        <select name="location" id="location">
            <option value="Above Ground">Above Ground</option>
            <option value="Ground Plane">on the Ground Plane</option>
        </select>.

        <button id="submit">Update</button>
        </form>

        <script>
        // Select dropdowns from querystring

        this_url = new URL(window.location.href)

        selected_fur = this_url.searchParams.get("fur");
        document.querySelector('option[value="'+selected_fur+'"]').selected = true

        selected_location = this_url.searchParams.get("location");
        document.querySelector('option[value="'+selected_location+'"]').selected = true

        selected_age = this_url.searchParams.get("age");
        document.querySelector('option[value="'+selected_age+'"]').selected = true

        </script>

    </div>

    <div id="chart" style="height: 500px; width: 500px">
        <canvas id="chart_canvas"></canvas>
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