Getting State 0 Error On XMLHTTPRequest
Oct 13, 2011
i am getting state 0 error on XMLHTTPRequest. I am using POST method to get some information from a link hosted by the client. I am calling from a mobile application. I have added a html file in an android application and from that html file i am calling post method on the client web link using XMLHTTPRequest object. I got the information from this site that its due to cross domain access issue. And get the html file from the web server to fix this issue. But in my scenario i cannot do this. The html file is embedded in the android application.
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Nov 4, 2009
I've written the below code which submits to a servlet, does a bit of processing and returns a JSON object. I'm reaching the servlet, but I never reach the alert("ready()") in the JavaScript.It looks as though the readyState never actually reaches state 4.
function fetchhits() {
var httpRequest = null;
var url = "http://localhost:8080/Json/FetchTopHit?amount=1";
[code]....
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Jul 23, 2005
Opening IE displays the following code fine.
When I open a new window the code no longer works. All the HTML is
overwritten with the first document.write statement.
This code pulls XML from a web site then parses it into a dynamically
created table built with javascript. The write table is not working
correctly, other methods work fine. This code also locks up Fire Fox to
where it doesn't stop loading the page. Code:
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Feb 14, 2010
I'm try to create an XMLHttpRequest object but getting a syntax error with this code:
var XMLHttpRequest;
try{
XMLHttpRequest = new ActiveXObject("Microsoft.XMLHTTP");
}
syntax error: missing } XML expression (on column 56)
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Nov 1, 2011
I used the code from the following article...[URL]
$(function() {
$('img[data-hover]').hover(function() {
$(this).attr('tmp', $(this).attr('src')).attr('src', $(this).attr('data-hover')).attr('data-hover',
[code]...
why does the rolled over image's src return to the original value when the user rolls back off it?
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Jul 21, 2011
To say I'm new to JavaScript is a bit of an understatement so bear with me. I have a site set up with a variety of layers of toggles. When you enter the site all of the items are collapsed and you click the headings to expand. Each of the toggle-able items have ids. It works great for users who start at the homepage.
However, when I send people to any of the inner topics, all they see is the initial collapsed state of the site. I want to be able to provide a URL that will set the toggle to open, and show all of the content for that section on entry.
Here is my code and js, can anyone point me in the right direction?
[Code]....
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Jun 1, 2010
How can I preserve the session state of a SharePoint browser state using javascript?
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Feb 2, 2011
I am attempting to make a menu that has a background image that changeswhen you rollover or click a menuitem. I've got the hover effect working fine with CSS, but am trying to implement the click event via jquery with the following:
CSS:
div.SustainResourcesMenuTabs
{ background-image: url('/images/departments/commdev/sustainability/menu_tab.jpg');
}[code]....
My process is to reset the entire menu to the inactive state, then switch on the active state for the item that was clicked. Eventually, the item that was clicked will display its corresponding body section as well. I've tried using the CSS pseudo-class "active", but since the entire div is the link, that is unavailable. I've also tried multiple variations of addClass/removeClass, toggleClass, and setAttribute/removeAttributebut nothing hasworked so far.
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Mar 13, 2005
Yesterday I started rewriting the xmlhttprequest functions to an oo equivalent, but as it turns out, I don't get it right:
Code:
function Request()
{
this.req=init();
this.req.onreadystatechange = this.processedRequest;
//addEventHandler/attachEvent alternative
//doesn't work either
function init()
{
try
{
if(window.XMLHttpRequest)
return new XMLHttpRequest();
else
return new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e)
{
alert(e);
}
}
}
Request.prototype.send=function(url)
{
this.req.open("GET", url, true);
this.req.send(null);
}
Request.prototype.processedRequest=function()
{
if (this.req.readyState == 4)
{
if(this.req.status == 200)
{
response=this.responseXML;
res=response.getElementsByTagName('result')[0].firstChild.data;
func=response.getElementsByTagName('feedTo')[0].firstChild.data;
eval(func+'('+result+')');
}
else
{
alert(this.req.statusText);
}
}
}
expected usage:
Code:
var x=new Request();
x.send(url); //the processing function
//the eventtrigger should activate the callback function
//when the xml has been returned
It seems like the problem is that I don't get to my "this.req" in the processedRequest function. Can anyone see where the problem lies, it has been turning me crazy all weekend already.
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Jul 6, 2010
1. - I am new to this
2. - Using the following .js file:
Code:
function makeObject(){
var x;
if (window.ActiveXObject) {
x = new ActiveXObject("Microsoft.XMLHTTP");
}else if (window.XMLHttpRequest) {
x = new XMLHttpRequest();
}
[Code]...
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Sep 12, 2005
Ive been playing around with xmlHTTPRequest and was wondering if i was
programming a part of my code wrong.
what i want to do is have the browser access another part of my site
using xmlhttprequest.
however, when i use xmlhttp.open("POST",
'http://xml.mysite.com/test.php')
it fails, but if i use xmlhttp.open("POST",
'http://www.mysite.com/test.php') it works. Is access to another url
restricted in xmlhttp?
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Dec 29, 2005
I have something like this:
var xmlDoc=document.implementation.createDocument("", "", null);
but in opera xmlDoc.load(...) won't work, so I use:
XMLHttpRequest, and I have all needed code... let's say it works...
So I got serviceRequest.responseXML and is there a way to initialize xmlDoc
in my case ? I am asking because I have code that uses xmlDoc.load(...) in
FF and all code that's need to futher work with XML written. So this would
be comfortable for me to use xmlDoc instead of creating everything from
start.
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Feb 25, 2006
I'm fetching some HTML files with XMLHttpRequest and dumping the
ResponseText into block elements; works fine except that single and double
quotes are being displayed as question marks (inside of a black diamond in
FireFox)
What's going on ? What is the workaround ? I've tried this:
divElement.innerHTML = x.responseText.replace(/?/g, "'")
but it does nothing ... even if it did work it would not be distinguishing "
from '
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Jan 19, 2007
I would like to use the xmlhttprequest-object to send an http request
to my server. The http request is used to switch the light on through
home automation.
However it's not working, and I can't find the problem.
Could it be that the apache-server is located on 192.168.0.21 and that
the http request is sent to 192.168.0.21:8080?
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Apr 24, 2005
function XML_request(func) {
var onreadystatechange= func;
this.method = "GET";
this.get = function(url) {
var request = null;
var state_change = function() {
if (request.readyState==4) {
if (request.status==200) {
onreadystatechange(request);
} else {
return null;
}
}
}
try {
request = new XMLHttpRequest();
} catch(e) {
try {
request = new ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {
return null;
}
}
if (request===null) {
return null;
}
request.onreadystatechange = state_change;
request.open(this.method, url, true);
request.send(null);
}
}
var req = new XML_request(function(response) {
response = response.responseXML
alert(response.getElementsByTagName('blah')[0].firstChild.data);
});
req.get('index.php?mode=blah&a=response')
i didn't like the examples I found so this is suitable.. I only tested in ie and firefox though.. so let me know what I may be missing.. or criticism in general.
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Oct 26, 2005
I'm working on an application that uses ajax and we are going to have a version that people with browsers that don't support the XmlHttpRequest object. My problem is what's the best way to check this.
I have tried the following
var xmlreq = new new XMLHttpRequest();
if (!xmlreq){
// handle the browser stuff
}
In netscape 4.7 this results in an error that I don't seem to be able to recover from and I don't think this is the best approach to this problem.
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Sep 11, 2011
While accessing my web service i am getting XMLHttpRequest status=0 in Crome/Mozilla and in IE getting XMLHttpRequest status=406. What is the solution for it so that i will successfully get responseText from server? I have tried accessing my html code with localhost but its getting same error,while when i run my code in that localhost location through local drive then it's working. why this is happning i didn't get?
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Feb 3, 2010
I got a javascript function to pull contents from a php page, let's call this page B to the actual page, let's call this page A.
As I know when a page gets loaded the javascript on that page won't execute, am I right?
Now I need the javascript code on that page B to get executed. Is that somehow possible?
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May 21, 2006
I'm loading a javascript within a webpage on domain A from domain B like this:
Code:
<script type="text/javascript" language="JavaScript" src="http://domainB/path"></script>
Works perfectly, the script loads and executes. But calling XMLHttpRequest.open accessing Domain B from within this script doesn't work: Permission denied.
Now, I know of the cross domain security rule, but why can I load a script from Domain B, but not make a request with XMLHttpRequest to Domain B? Alle the counter scripts do exactly this... Any advice?
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Dec 12, 2006
I'm using Firefox 1.5 and FCKEditor in a CMS app. Everything works in older versions of Firefox but in 1.5 I get a javascript error saying that the XML file holding the styles can't be loaded. Here is the code where the xml request is made:Code:
FCKXml.prototype.LoadUrl = function( urlToCall )
{
var oFCKXml = this ;
var oXmlHttp = FCKTools.CreateXmlObject( 'XmlHttp' ) ;
oXmlHttp.open( "GET", urlToCall, false ) ;
oXmlHttp.send( null ) ;
if ( oXmlHttp.status == 200 )
this.DOMDocument = oXmlHttp.responseXML ;
else if ( oXmlHttp.status == 0 && oXmlHttp.readyState == 4 )
this.DOMDocument = oXmlHttp.responseXML ;
else
alert( 'Error loading "' + urlToCall + '"' ) ;
}
Everything works in IE but Firefox just gives the error that is set in the final else. Any ideas on how to debug further or fix (preferrably fix).
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Feb 22, 2010
The code I am writing fetches a csv file with weather data and updates the contents of the page every 5 seconds. It works correctly as far as I can tell in Firefox, IE, and Chrome. In Safari it works correctly the first time it loads but gives the following error any time after that.
Error: NETWORK_ERR: XMLHttpRequest Exception 101 I've searched for this but couldn't find anything that seemed to be similar to the issue I'm having. The error occurs on the xmlhttp.send(null); line.
Code:
function getFile(url)
{
var file_url = url + '?t=' + ((new Date()).valueOf());
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
[Code]...
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Jul 23, 2005
I have a web app, written in Javascript, that communicates to a back-end
server via XMLHttpRequest.
The logic goes:
* Login
* Perform transaction
* (delay while the user does something)
* Perform transaction
* ...
* Logout
It would be really convenient if I could make the whole thing a single HTTP
connection. That way, I avoid needing IPC and session management at the
server end, and a single instance of a CGI script can represent the entire
session. When the socket gets closed, the CGI script terminates and
implicitly logs the user off. All very simple.
Can I use HTTP pipelining with XMLHttpRequest to do this? The docs seem to
say (it's quite hard to tell) that I have to call open() after each send(),
which will presumably create a new HTTP session. Can I 'persuade' the
browser to reuse an existing session?
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Jul 23, 2005
I am trying to implement XMLHttpRequest to a new website, but when I
include HTML, the code appears as is, instead of the formated HTML. Please
have a look and click the 1st link ("L'Association") on top (yello
horizontal bar on top): Code:
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Jul 23, 2005
I have a form in a webpage that I want to submit
and get the result back without reloading the page.
I've seen many times ppl using text/x-www-form-urlencode but I was
wondering if it was possible somehow to submit the form element
directly so I wouldn't have to process the form to put it in a string.
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Jul 23, 2005
I am playing with the XMLHTTPRequest method to perform client/server
transactions. I have it set up right now so that when readyState is 4,
it takes the XML and processes it. This works great until there is alot
of data. In that case, the user will have to wait for the data to come
back which may take a minute or so.
I don't want the user to have to wait. Is it possible for javascript to
periodically (while still receiving more data) stop and display what it
has received thus far? I guess this would be considered a type of
streaming.
In mozilla/firefox, I have read that I can use readyState 3 to run my
callback function every 4096 bytes. I can then take those 4K, parse
them, and then continue on. However I have also read that IE cannot do
this. Since I need this to work in IE, is there a workaround?
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Dec 12, 2005
I came across something I'm unfamiliar with -- there's an added check for window.location.href.indexOf("http")==-1 to see if the XMLHttpRequest send() completed, i.e.,
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
Does anyone know why this is done or which browser this (kludge?) is meant for?
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