window.addEventListener('load', function(event) {
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    loadingWrapper.classList.add('fadeOut');

    var root = document.getElementById('graphql-playground');
    root.classList.add('playgroundIn');

    var data = JSON.parse(document.getElementById('graphql-playground-data').innerText);
    GraphQLPlayground.init(root, {
        'endpoint': data.entrypoint
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});