code: function caml_open_sync_raw(fileName, onSuccess, onFailure) {
      var f = caml_js_from_string(fileName);
      var data = new joo_global_object.Uint8Array([17, 211, 2]);
  
      var result = null;
  
      function onSuccess () {
          var res = new joo_global_object.Uint8Array(oReq.response);
          var ba = caml_ba_create_from(res, null, 0, 0, 0, [res.length])
          onSuccess(ba);
      };
  
      function onFailure () {
          onFailure(caml_js_to_string("failed to load file: " + f));   
      };
  
      var oReq = new XMLHttpRequest();
      oReq.addEventListener("load", onSuccess, onFailure);
      oReq.responseType = "arraybuffer"
      oReq.open("GET", fileName, true);
      oReq.send();
  }
docs: Provides: caml_open_sync_raw Requires: caml_ba_create_from, caml_js_from_string, caml_js_to_string