@@ -18,15 +18,17 @@ var cfg_endpoint = null;

 var cfg_data_field = null;

 var to_send = [];

-var sender = new XMLHttpRequest();

+var senders = [new XMLHttpRequest(), new XMLHttpRequest()];

+var i_sender = 1;

 function sendHead() {

    if (to_send.length < 1) return;

    var line = to_send[0].split(";")[1];

    var data = new FormData();

    data.append(cfg_data_field, line);

-   sender.open("POST", cfg_endpoint, true);

-   sender.send(data);

+   i_sender = 1 - i_sender;

+   senders[i_sender].open("POST", cfg_endpoint, true);

+   senders[i_sender].send(data);

 }

 function enqueue(key, line) {

@@ -42,8 +44,10 @@ function uploadDone() {

 function uploadError() { console.log(this.statusText); }

-sender.addEventListener("load", uploadDone);

-sender.addEventListener("error", uploadError);

+senders[0].addEventListener("load", uploadDone);

+senders[0].addEventListener("error", uploadError);

+senders[1].addEventListener("load", uploadDone);

+senders[1].addEventListener("error", uploadError);

 Pebble.addEventListener("ready", function() {

    console.log("Health Export PebbleKit JS ready!");