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get finger print using morpho device in https

i want to capture finger print using morpho device. i am able to do that but the thing is, i am getting error because the service i am using is http and my website is https. so i have to allow every time my website to read http url.
what actually they are doing is, they are giving a service which allow me to access http://localhost:8080/CallMorphoAPI. but this is for http not https. i installed morpho driver which started this service. so what i want to know if there any way so i can modify this service. I want Finger print scan using morpho 1300 e2 using java api.
function CallFingerAPI()
{
var url = "http://localhost:8080/CallMorphoAPI";
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
fpobject = JSON.parse(xmlhttp.responseText);
console.log(fpobject.Base64BMPIMage);
// Call Servlet
function uploadThumb(image){
var formdata = image;
var fr = new FormData();
fr.append("data", formdata);
var id = "<%=patientId%>";
var url = "ThumbUpload?patientId="+id;
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function(){
if(xmlhttp.readyState === 4 && xmlhttp.status === 200){
var response = xmlhttp.responseText;
response = response.replace(/\r?\n|\r/g, "");
response = response.trim();
if(response === "Uploaded"){
alert("Uploaded");
}
else{
alert("Error");
}
}
};
try{
xmlhttp.open("POST",url,true);
xmlhttp.send(fr);
}catch(e){alert("unable to connect to server");
}
}
uploadThumb(fpobject.Base64BMPIMage);
template = fpobject.Base64ISOTemplate;
}
}
var timeout = 5;
xmlhttp.open("POST",url+"?"+timeout,true);
xmlhttp.send();
}

Import text file into a WordPress widget using JavaScript

I would like to have a WordPress text widget with a javascript that would populate the widget with text from some .txt file (this is to allow dynamic content on a cached page by allowing me to update that text file with new HTML content).
I found this thread and tried the following code, which did not work:
<script type="text/javascript">
function read(textFile){
var xhr=new XMLHttpRequest;
xhr.open('GET',textFile);
xhr.onload=show;
xhr.send()
}
function show(){
var pre=document.createElement('pre');
pre.textContent=this.response;
document.body.appendChild(pre)
}
read('https://raw.githubusercontent.com/Raynos/file-store/master/temp.txt');
</script>
Any suggestions on how to fix it?

Do you know Javascript or are you just hoping for a copy and paste solution? Perhaps try reworking this code here:
function getStuff(url) {
var xhttp, jsonData, parsedData;
// check that we have access to XMLHttpRequest
if(window.XMLHttpRequest) {
xhttp = new XMLHttpRequest();
} else {
// IE6, IE5
xhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
// get the data returned from the request...
jsonData = this.responseText;
// ...and parse it
parsedData = JSON.parse(jsonData);
// return the data here
// if the data you're returning is an object
// you need to know the endpoints
// for example, if there was a username,
// you might return parsedData.username
var something = parsedData.endpoint;
// debug / test
console.log(something);
var elementToShowStuffIn = document.getElementById('theIDOfTheElement');
elementToShowStuffIn.innerHTML = something;
}
};
xhttp.open("GET", url, true);
xhttp.send();
}
getStuff('https://raw.githubusercontent.com/Raynos/file-store/master/temp.txt');
Yes, this works. Just replace this line here: var something = parsedData.foo.bar;

XMLHttpRequest - Hitting serverside aspx method - 505 Internal Server Error

I have coded an AJAX GET request using a XMLHttpRequest object. My problem is that the request is never hitting the server side code. I had a look at many forums and at stackoverflow and I dont really know what I am missing.
My JS code
function loadXMLDoc() {
var xmlhttp;
if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
}
else {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
var response = xmlhttp.responseText;
}
}
xmlhttp.open("GET", "login.aspx/GetData", true);
xmlhttp.setRequestHeader("Content-Type", "application/json");
xmlhttp.send(null);
}
Server side code - login.aspx
[WebMethod]
public static string GetData()
{
return "break here";
}
Looking at the Network tab in developer tools, I see that it cannot find the method as the error code is 505 (Internal Server Error)
Can this work within an aspx page? maybe only wrks in a asmx service?
Is there anything in the code that I have not done or is wrong?
Thanks

Giving an attribute to an xmlhttprequest object

I have the following code :
<head>
<script>
function startChanging() {
var elems = document.getElementsByTagName("img");
for(var i=0; i < elems.length; i++)
{
var xmlhttp;
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp["elem"] = elems[i];
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
this["elem"].src = xmlhttp.responseText;
}
}
xmlhttp.open("GET", "http://myurl.com/somescript.php", true);
xmlhttp.send();
}
};
</script>
</head>
<body onload="startChanging()">
<img src="https://www.google.com/images/srpr/logo11w.png">
<br/>
<img src="https://www.google.com/images/srpr/logo11w.png">
<br/>
<img src="https://www.google.com/images/srpr/logo11w.png">
</body>
Even though I create a new instance of XMLHttpRequest for each iteration and add the current element to an attribute, when the request returns a response only the last img element is changed.
I am looking for a simple solution to change the src of the img element without iterating through all the elements again when the response comes. I would like a pure Javascript solution (read: no JQuery).
I am certainly doing something wrong here I just don't understand what. Any help would be appreciated.

In your for loop, you are overwriting the xmlhttp variable so when you get into the onreadystatechage function and you check the value of xmlhttp.readyState, it will not be checking the right object.
I'd suggest this fix which changes two things:
It puts each ajax call into it's own IIFE which keeps the xmlhttp variable separate for each ajax call.
It passes elems[i] into the closure so you don't have to do the property saving hack.
Code:
function startChanging() {
var elems = document.getElementsByTagName("img");
for(var i=0; i < elems.length; i++)
{
(function(obj) {
var xmlhttp;
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
obj.src = xmlhttp.responseText;
}
}
xmlhttp.open("GET", "http://myurl.com/somescript.php", true);
xmlhttp.send();
})(elems[i]);
}
};

One possible approach:
xmlhttp.onreadystatechange = function() {
if (this.readyState === 4 && this.status === 200) {
this.elem.src = this.responseText;
}
}
As you see, I've replaced all the references to xmlhttp within that handler function to this.
The problem is even though you've created a new AJAX-serving object at each step of the loop, each newly-created 'readystatechange' handler function referred to the same object known under xmlhttp variable.
In general, this is quite a common problem when someone works with a variable declared within a loop yet referred by functions created in the same loop. Stumble upon this once or twice, and you'll begin to see the pattern. )

xmlhttp.send();
Put data into the send method:
xmlhttp.send(data);
Source: https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest
void send();
void send(ArrayBuffer data);
void send(ArrayBufferView data);
void send(Blob data);
void send(Document data);
void send(DOMString? data);
void send(FormData data);
Where data is a JavaScript variable, you can put anything into. If you want multipart message, you'd use var data = new FormData(); and put data into it using data.append('image', file); for file upload via ajax for example.
If no multipart, simply put anything in like:
data = { images: document.getElementsByTagName("img") }

Ajax request to load .php file not working

Trying to load contents from postcode.php file into a #postcodeList div, but it is not working (nothing happens). I checked postcode.php file it echoes al correct information.
var loadicecream = document.getElementById("iceCreams");
loadicecream.addEventListener("click", iceAjax, false);
function iceAjax() {
var xmlhttp;
if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
}
else {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.open("POST","ice-cream-list.php",true);
xmlhttp.send();
document.getElementById("ice-cream-list").innerHTML = xmlhttp.responseText;
}

You want the query to execute asynchronously (the third parameter to open function) and then you synchronously try to read the value. This happens before the query has been sent, so it will always be empty.
Either run the load synchronously, or set the xmlhttp.onreadystatechange to point into a function where you handle the loaded state. The best way is to do it asynchronously since you don't want to block the user from using the page while loading data.
Quick example, only handles the success case:
var xmlhttp;
if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
}
else {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function()
{
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
document.getElementById("postcodeList").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("POST","postcode.php",true);
xmlhttp.send();
Read up on the documentation for the onreadystatechange, at least you want to handle the case where there is a timeout or some error, otherwise the user won't know something went wrong.