XMLHttpRequest And Firefox 1.5

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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Firefox Can't Create An XMLHttpRequest

Oct 30, 2006

Why are Firefox 1.5 and 2.0 no seeing this method when IE6 does"

here's the import statements followed by the function imported, followed by the script trying to create a XMLHttpRequest, followed by the in document script using the imported createRequest() function. Code:

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XMLHttpRequest In FireFox And Browser Cache

Jul 23, 2005

Does anybody know how to make FireFox to cache data that comes via
XMLHttpRequest? Here is the issue I deal with:
- On the web server (apache2) I have a static xml file test.xml
- When I download test.xml using XMLHttpRequest, FireFox always gets
complete test.xml from the server, thus not using the browser cache
(apache sends 200 OK back to FireFox).
- If I look into the HTTP request and the HTTP response, I can see
that FireFox seems to always set the following request headers:
Pragma: no-cache
Cache-Control: no-cache
- Apache always sets Last-Modified and ETag headers in a response.

I tried the same JavaScript code with IE, and IE definitely relies on
its cache: I can see in Apache logs responses with 304 Not Modified
code for IE, also HTTP requests from IE have If-Modified-Since and
If-None-Match headers. I didn't find any difference in responses Apache
provides for FireFox and IE.

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May 14, 2009

i am new to AJAX but i havejust managed to write one of my first basic scripts. What it does is takes all the news items out of a database and lists them as links. When you click a link i want all of the data that is linked to that news item to display underneath. Now i have got this to work except it will not work in Firefox, all other browsers it is fine.

[Code]....

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Oo Xmlhttprequest

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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XMLHttpRequest() In FF Not In IE?

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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XmlHTTPRequest Problem

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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XMLDocument And XMLHttpRequest ?

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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? In XMLHttpRequest.ResponseText

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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XmlHttpRequest Is Not Working

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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Xmlhttprequest Object

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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XMLHTTPRequest Compatibility

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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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
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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
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Can I use HTTP pipelining with XMLHttpRequest to do this? The docs seem to
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Jul 23, 2005

I am trying to implement XMLHttpRequest to a new website, but when I
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Jul 23, 2005

I have a form in a webpage that I want to submit
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I've seen many times ppl using text/x-www-form-urlencode but I was
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Jul 23, 2005

I am playing with the XMLHTTPRequest method to perform client/server
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back which may take a minute or so.

I don't want the user to have to wait. Is it possible for javascript to
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has received thus far? I guess this would be considered a type of
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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
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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.,

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Does anyone know why this is done or which browser this (kludge?) is meant for?

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Aug 11, 2006

I'm using the XMLHTTPRequest JavaScript object to fetch updated info
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The problem I'm having occurs on Windows 2000/IE 6. There is a very
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eventually gets to readyState 4. I have no idea why. The page works
just fine on Windows XP/IE 6.

There is no delay or hang up on the server side as far as I can tell
(if we get to readyState 3 is because the server already sent its
response).

Does anyone know what takes place between readyState 3 and 4 and why
does this happen on Windows 2000 but not on Windows XP? Code:

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Sep 27, 2010

It is day two of the same problem (and day two of learning Ajax, day five of Javascript)

The current code (below) does nothing; it does not go into the showContents function. Switching the order of some items would cause it to enter the function, but it would always alert that the xhr status was 0. I guess this is an improvement?

php doc that is getting requested (I don't think the error is here as the problem is that it is not even initializing):

Code:

javascript code that is requesting the information:

Code:

I need to pass the num variable because the fields I am dealing with are part of a bunch of fors that create an unspecified number of fields titled 1source, 2source, 3source, etc.

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Feb 23, 2011

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<a id="page"><? echo $page;?></a>
<a id="next"><? echo $next;?></a>

if someone click on the link id='next' then they go to the next page where at the moment in the URL it says: default.php?page=3

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Dec 4, 2009

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<!Doctype HTML>
<html>
<head>

[code]....

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Feb 12, 2010

I'm trying to get an xml file using an xmlhttprequest with the GET method. My request works fine with any browser except internet explorer. This one send no http request at all. (using wireshark to monitor).I thought about a caching issue but it should work at least once.

My code is the following:

var req;
var xmlDoc;
function GetXmlHttpObject()
{
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