ajax test

strings_en.h

@@ -68,4 +68,27 @@ const char HTTP_HELP[]             PROGMEM =
  "</table>"
  "<p/>More information about WiFiManager at <a href='https://github.com/tzapu/WiFiManager'>https://github.com/tzapu/WiFiManager</a>.";
 
+const char HTTP_JS[] PROGMEM = 
+"<script>function postAjax(url, data, success) {"
+"    var params = typeof data == 'string' ? data : Object.keys(data).map("
+"            function(k){ return encodeURIComponent(k) + '=' + encodeURIComponent(data[k]) }"
+"        ).join('&');"
+""
+"    var xhr = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject(\"Microsoft.XMLHTTP\");"
+"    xhr.open('POST', url);"
+"    xhr.onreadystatechange = function() {"
+"        if (xhr.readyState>3 && xhr.status==200) { success(xhr.responseText); }"
+"    };"
+"    xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');"
+"    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');"
+"    xhr.send(params);"
+"    return xhr;"
+"}"
+""
+"// example request\n"
+"postAjax('/status', 'p1=1&p2=Hello+World', function(data){ console.log(data); });"
+""
+"// example request with data object\n"
+"postAjax('/status', { p1: 1, p2: 'Hello World' }, function(data){ console.log(data); });"
+"</script>";
 #endif