var epCustomInput = false;
    window.epas.customQuery = "{\"from\":0,\"size\":5,\"sort\":[...],...}}}";
    const {fetch: whatwgFetch} = window;
    window.fetch = async (...args) => {
      if (window.epCustomInput) {
        const { customQuery, placeholder } = window.epas;
        const replacement = document.getElementById(window.epCustomInput).value;
        args[1].body = customQuery.replace(new RegExp(placeholder.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'), 'g'), replacement);
      }
      return await whatwgFetch(...args);
    }

    var epSearchInputs = document.getElementsByTagName("input");
    for ( i=0; i < epSearchInputs.length; i++ ) {
      if (epSearchInputs[i].type == "search") {
        epSearchInputs[i].addEventListener("focus", function() {
          if(this.id == "defaultSearch") {
            window.epCustomInput = false;
          } else {
            window.epCustomInput = this.id;
          }
        });
      }
    }