atrr function is not giving the required response, I have a small code that gets data from an external API which has several data in a dict.

<div id="facet-knowledge-panel" style="margin-left: 70px;">
        <h2 id="facet_panels_title"></h2>
        <div id="facet_panels_content"></div>
    </div>

    <button id="open">open</button>
 
    <script>
        let facet_kp = "http://localhost/render-to-html?facet_tag=category&value_tag=en:beers";

        fetch(facet_kp)
            .then((response) => {
                if (response.ok) {
                    return response.text();
                }
                else {
                    throw new Error("Network Response Error while fetching facet kp");

                }
            })
            .then(data => {
                let title = document.getElementById("facet_panels_title");
                title.innerHTML = "Facet knowledge panel";

                let knowledgepanel = document.getElementById("facet_panels_content");
                knowledgepanel.innerHTML = data;
            })
    </script>

Here, id="facet_panels-content" will return data after getting data from API, it contains data in "<details><summery>..." tag, but I want to default Leave the Details tab open.

<script>
        $(document).ready(function(){
          $("#open").click(function(){
            $("#HungerGames").attr("open",true);
          });
        });
</script>

I'm using Jquery code to open a single detail label via a button, it's working fine, but I want it to open by default without any button.

$(document).ready(function(){
            $("#HungerGames").attr("open",true);
        });

So if I use this, it won't open the "Details" tab for that id. I want to keep the "Details" tab open by default without any buttons.