- return unless page_startup_api_calls.present? || page_startup_graphql_calls.present?

= javascript_tag do
  :plain
    var gl = window.gl || {};
    gl.startup_calls = #{page_startup_api_calls.to_json};
    gl.startup_graphql_calls = #{page_startup_graphql_calls.to_json};

    if (gl.startup_calls && window.fetch) {
      Object.keys(gl.startup_calls).forEach(apiCall => {
       gl.startup_calls[apiCall] = {
          fetchCall: fetch(apiCall, {
            // Emulate XHR for Rails AJAX request checks
            headers: {
              'X-Requested-With': 'XMLHttpRequest'
            },
            // fetch won’t send cookies in older browsers, unless you set the credentials init option.
            // We set to `same-origin` which is default value in modern browsers.
            // See https://github.com/whatwg/fetch/pull/585 for more information.
            credentials: 'same-origin'
          })
        };
      });
    }
    if (gl.startup_graphql_calls && window.fetch) {
      const headers = #{page_startup_graphql_headers.to_json};
      const url = `#{api_graphql_url}`

      const opts = {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
          ...headers,
        }
      };

      gl.startup_graphql_calls = gl.startup_graphql_calls.map(call => ({
        ...call,
        fetchCall: fetch(url, {
          ...opts,
          credentials: 'same-origin',
          body: JSON.stringify(call)
        })
      }))
    }