JavaScript - Javascript Code For Fetching The Page Url From An Iframe With Cross Domain

I'm wondering if anyone out there has a jquery solution to using an iframe that automatically adjusts it's height of the child and also works cross domain.

Any help would be greatly appreciated.

I've been working on a site where the content is displayed in an iframe. The iframe content is on a different domain than the iframe itself.

I've already got around the cross-domain problems by creating a file on the parent domain that the iframe content references via another iframe. (which uses parent.parent to skip the permissions issue)

That was all fine and pressing back and forward in the browser navigated back and forward in the iframe (at least in FF, not 100% sure about other browsers)

Then the client wasn't happy that the url in the browser didn't change and pages couldn't be bookmarked. So I created a solution where the parent.parent.location.href was changed to be domain.com/#/path/to/iframecontent.php so that pages could be bookmarked, that works fine but now back and forward don't work, or more specifically the url changes correctly but the iframe content doesn't go back.

Hello,

I am trying to create an imageuploader for my forum hosted on domain forum.com (fictional domain name)

The image uploader is hosted on domain uploader.com (fictional domain name)

When the uploader is done i want info to be passed from the uploader to the texteditor on the forum using javascript.

I tried everything i could think of with document.getElementById but to no avail.

The element on the forum is clickableEditor.textarea

Is it possible and if so, can someone please help me out?

Hi guys.

I want to create login form similar like facebook login which web owner can put the script and it will become login for their web and also it will auto register at their web.

I believe it need to use javascript because javascript is cross platform.

Can someone give me a clue for me to start on?

Hi All,

I'm writing this post as there are alot of questions about Cross Domain AJAX request so i'm going to give an overview of the different ways and the best practices

Ok so there are 2 systems for this the key difference is how much control you have.

If you control the Requested site you can use Javascript Safe calling to that server, this is all done via a few Headers so to do this

all you have to do is send some headers from the page your requesting.

The first is tell the browser that the site the AJAX call is coming from is allowed this is done with

"Access-Control-Allow-Origin: "
Now this can be set to a wild card and allow all sites to access the page

"Access-Control-Allow-Origin: *"

Or you can say only a set server can
"Access-Control-Allow-Origin: mydomain.com"

This header allows GET requests but what if you need to post data to the site well you need to tell the browser that POST data is allowed to be sent

Access-Control-Allow-Headers: GET,POST

Now we run into the problem that sending post data the browser will send the header Content-Type but your server has not told the browser its allowed to send that header so
Access-Control-Allow-Methods: Content-Type

Will allow the header to be sent if you wish to send any other custom headers you have to make your server tell the browser its allowed to send them this is done by adding them as a comma delimited list via the "Access-Control-Allow-Headers" header

Now if you dont have control well then your back to using a script that is local to the AJAX script then sending the data via cURL or another connection method to the remote server

Please note i will be uploading examples in php later.

Example Scripts

Remote Server
PHP Code:
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Headers: GET,POST");
header("Access-Control-Allow-Methods: Content-Type");
$output = array(
    'response' => 'hello world!',
    '_GET' => $_GET,
    '_POST' => $_POST,
);
echo json_encode($output); 


Client Script -- please note built for Google Chrome
PHP Code:
var getExample = new XMLHttpRequest();
getExample.open("GET", "http://www.test.com/remote.php?test=set", true);
getExample.onreadystatechange = function(requestHandle){ console.debug(requestHandle); }
getExample.send(null);

var postExample = new XMLHttpRequest();
postExample.open("POST", "http://www.test.com/remote.php?test=set", true);
postExample.onreadystatechange = function(requestHandle){ console.debug(requestHandle); }
postExample.setRequestHeader("Content-Type", "x-www-urlencoded-data");// this is sent to prevent the requested server not saving post data
postExample.send("?set=test"); 


If you are unable to Edit files on the remote server you can use the link provided by Kor
http://www.troywolf.com/articles/

This will give you all the information you require to use php to talk to the remote server (basic proxy in effect)

hi, in my page he http://www.mypubspace.com/dashtest/order.html

I would like this working Cross Domain and output in JSON?

Can anyone please help me?

thanks

code:
Code:

<html>
<body>

<script language="javascript" type="text/javascript">
<!-- 
//Browser Support Code
function ajaxFunction(){
	var townRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		townRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			townRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				townRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	townRequest.onreadystatechange = function(){
		if(townRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = townRequest.responseText;
		}
	}
	var name = document.getElementById('name').value;
	var county = document.getElementById('county').value;
	var town = document.getElementById('town').value;
	var queryString = "?name=" + name + "&county=" + county + "&town=" + town;
	//Add the following line
	townRequest.open("GET", "http://www.mypubspace.com/dashtest/townpubs.php" + queryString, true);
	townRequest.send(null);
}

function countyFunction(){
	var countyRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		countyRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			countyRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				countyRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	countyRequest.onreadystatechange = function(){
		if(countyRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = countyRequest.responseText;
		}
	}
	var name = document.getElementById('name').value;
	var county = document.getElementById('county').value;
	var town = document.getElementById('town').value;
	var queryString = "?name=" + name + "&county=" + county + "&town=" + town;
	//Add the following line
	countyRequest.open("GET", "http://www.mypubspace.com/dashtest/countypubs.php" + queryString, true);
	countyRequest.send(null);
}



function townlistFunction(){
	var ajaxRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		
		
	 if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxTownlist');
			var county = document.getElementById('county').value;
			var town = document.getElementById('town').value;
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	
	ajaxRequest.open("GET", "http://www.mypubspace.com/dashtest/town-select.php", true);
	ajaxRequest.send(null); 
}

function countylistFunction(){
	var ajaxRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxCountylist');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	
	ajaxRequest.open("GET", "http://www.mypubspace.com/dashtest/county-select.php", true);
	ajaxRequest.send(null); 
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

//-->
</script>

<a href="#" onClick="townlistFunction();">show towns list</a>
<a href="#" onClick="countylistFunction();">show counties list</a>
<form name='myForm'>
<div id="ajaxTownlist"></div>
<div id="ajaxCountylist"></div>
<input type='hidden' id='name' />
<input type='hidden' id='county' />
<input type='hidden' id='town' />
</form>
<div id='ajaxDiv'></div>
</body>
</html>

Hi,

I have searched and searched...

Is there a way of using the Ajax httpRequest cross domain?

thanks

hi,

my working project (needs a proxy): http://www.mypubspace.com/dashtest/order.html

currently working through this tutorial, I have setup a proxy and saved it as proxy.php
http://www.wait-till-i.com/2010/01/1...query-and-yql/


I just need to put this piece of code in my JavaScript but not sure where?!

Code:

var url = $(this).attr('href');
    if(url.match('^http')){
      url = 'proxy.php?url=' + url;
    }

here is my project code
Code:

<html>
<body>

<script language="javascript" type="text/javascript">
<!-- 
//Browser Support Code
function ajaxFunction(){
	var townRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		townRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			townRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				townRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	townRequest.onreadystatechange = function(){
		if(townRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = townRequest.responseText;
		}
	}
	var name = document.getElementById('name').value;
	var county = document.getElementById('county').value;
	var town = document.getElementById('town').value;
	var queryString = "?name=" + name + "&county=" + county + "&town=" + town;
	//Add the following line
	townRequest.open("GET", "http://www.mypubspace.com/dashtest/townpubs.php" + queryString, true);
	townRequest.send(null);
}

function countyFunction(){
	var countyRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		countyRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			countyRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				countyRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	countyRequest.onreadystatechange = function(){
		if(countyRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxDiv');
			ajaxDisplay.innerHTML = countyRequest.responseText;
		}
	}
	var name = document.getElementById('name').value;
	var county = document.getElementById('county').value;
	var town = document.getElementById('town').value;
	var queryString = "?name=" + name + "&county=" + county + "&town=" + town;
	//Add the following line
	countyRequest.open("GET", "http://www.mypubspace.com/dashtest/countypubs.php" + queryString, true);
	countyRequest.send(null);
}



function townlistFunction(){
	var ajaxRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		
		
	 if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxTownlist');
			var county = document.getElementById('county').value;
			var town = document.getElementById('town').value;
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	
	ajaxRequest.open("GET", "http://www.mypubspace.com/dashtest/town-select.php", true);
	ajaxRequest.send(null); 
}

function countylistFunction(){
	var ajaxRequest;  // The variable that makes Ajax possible!
	
	try{
		// Opera 8.0+, Firefox, Safari
		ajaxRequest = new XMLHttpRequest();
	} catch (e){
		// Internet Explorer Browsers
		try{
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try{
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e){
				// Something went wrong
				alert("Your browser broke!");
				return false;
			}
		}
	}
	// Create a function that will receive data sent from the server
	ajaxRequest.onreadystatechange = function(){
		if(ajaxRequest.readyState == 4){
			var ajaxDisplay = document.getElementById('ajaxCountylist');
			ajaxDisplay.innerHTML = ajaxRequest.responseText;
		}
	}
	
	ajaxRequest.open("GET", "http://www.mypubspace.com/dashtest/county-select.php", true);
	ajaxRequest.send(null); 
}

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

//-->
</script>

<a href="#" onClick="townlistFunction();">show towns list</a>
<a href="#" onClick="countylistFunction();">show counties list</a>
<form name='myForm'>
<div id="ajaxTownlist"></div>
<div id="ajaxCountylist"></div>
<input type='hidden' id='name' />
<input type='hidden' id='county' />
<input type='hidden' id='town' />
</form>
<div id='ajaxDiv'></div>
</body>
</html>

please help?!

Hello

I'm using lytebox to open an iframe, but the iframe url is in another domain that the parent window.

i need to close the iframe when user clicks a button. I can do that with javascript : top.$lb.end();
the $lb.end(); starts lytebox scripts in parent window which close the iframe and modify all the css stuff.
That works when my iframe url is in the same domain. But when it's in another domain, that does'nt work.

Can anyone tells me how to do that ? Starting the $lb.end() function of the parent window ?
Thank you.

Hey guys. Is there any any ANY way to read highlighted text of in an iframe that is displaying an external server / site? Say you select some text in the iframe and click a button outside of the iframe that prints the selected text to a textbox?

Really really would love to do this or any ANY workaround. This really sucks that its a security measure by default that doesn't allow this!! Ugh!

I have a website that is using ajax to keep the page up to date with the database information. I call this page through a file called start.php. Once index.php is loaded it has a menu with selections. I then want it to call a page called query.php in an iframe to update the information, but not open a new window. In the iframe the query.php will run and then redirect itself to blank.php. The code is as follows and any help would be much appreciated. I have tried several methods of doing this and they have been commented out because they didn't work or didn't do what I wanted them to do. I do not want to use window.open since IE doesn't work well with it.

window.open does work by pop up windows but I want to stay away from them.
The main code I am looking to get help on is in red under start.php.

In start.php I will include the entire file. In index.php I'm only going to include the main sections I use for this snippit. In query.php I'm not going to include query.php since I beleive this file isn't important for this snippit.

start.php
Code:

<html>
	<head>
		<title>Countries At War!</title>
      <body style="background-color:#B0C4DE;">
      
		<script language="JavaScript" type="text/javascript">
			//Gets the browser specific XmlHttpRequest Object
			function getXmlHttpRequestObject() {
				if (window.XMLHttpRequest) {
					return new XMLHttpRequest(); //Not IE
				} else if(window.ActiveXObject) {
					return new ActiveXObject("Microsoft.XMLHTTP"); //IE
				} else {
					//Display your error message here. 
					//and inform the user they might want to upgrade
					//their browser.
					alert("Your browser doesn't support the XmlHttpRequest object.  Better upgrade to Firefox.");
				}
			}			
			//Get our browser specific XmlHttpRequest object.
			var receiveReq = getXmlHttpRequestObject();
			//Initiate the asyncronous request
			
function sayHello() {
				//If our XmlHttpRequest object is not in the middle of a request, start the new asyncronous call.
				if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
					//Setup the connection as a GET call to SayHello.html.
					//True explicity sets the request to asyncronous (default).
				    receiveReq.open("GET", 'index.php', true);
					//Set the function that will be called when the XmlHttpRequest objects state changes.
					receiveReq.onreadystatechange = handleSayHello; 
					//Make the actual request.
					receiveReq.send(null);
				 
				}
}
 
			//Called every time our XmlHttpRequest objects state changes.
			function handleSayHello() {
				//Check to see if the XmlHttpRequests state is finished.
				if (receiveReq.readyState == 4) {
					//Set the contents of our span element to the result of the asyncronous call.
					document.getElementById('span_result').innerHTML = receiveReq.responseText;
				}
}

 function openMenu(query) {
  
    var myString = 'query.php?' + query;
   // window.open(myString, 'linkname', 'title=no, height=465, width=400, left=550, top=150,  location=yes, resizable=no, menubar=no, scrollbars=no')
    //document.getElementById('engine').src = myString;
	//document.getElementById('engine').setAttribute('src',myString;);
	//top.frames['engine'].location.href = myString;
	pausecomp(1000);
    sayHello();
} 
 

function pausecomp(millis)
{
var date = new Date();
var curDate = null;
do { curDate = new Date(); }
while(curDate-date < millis);
} 
			</script>
	</head>
	<body>
<a href="javascript:sayHello();">Say Hello</a><br />
         <iframe src="blank.php" MarginWidth="0" transparent="yes" width="30" height="25"
			frameborder="0" scrolling="no" name="engine">
          UPGRADE YOUR BROWSER</iframe>
		<span id="span_result"></span>
        <body onLoad="sayHello();">
	</body>
</html>

index.php
Code:

<table width="100%" border="2" bordercolor="Black">
<tr><center>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=1');">Home</a></td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=2');">Jobs</td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=3');">Travel</td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=4');">Fight</td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=5');">Inventory</td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=6');">Properties</td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=7');">Rewards<?php if($db_field['rewardpoints'] >= "1") print "(". $db_field['rewardpoints'] . ")";?></td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=8');">Profile<?php if($db_field['profilepoints'] >= "1") print "(". $db_field['profilepoints'] . ")";?></td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=9');">Alliances</td>
<td><center><a href="javascript:void(0);" onclick="javascript: openMenu('menulevel1=10');">Options</td>
</tr></center>
</table>

Thanks in advance for all the help.

i'm working with a city select option, a hotel select option & an iframe. the hotel select option is populated depending on the chosen city which then updates the iframe src. this is all working fine.

the trouble im having is that when the page is refreshed, normal f5 way, the hotel option changes whereas the city option & the iframe src remains the same??

this problem does not occur on a force refresh via control + f5 as then both select options & iframe src revert to their original state.

I don't want the city option to change upon a normal page refresh. how do I go about this?

below are the city, hotel select options & iframe
Code:

    <form name="hotelslist" id="hotelslist">
        <select id="cities" name="cities" onChange="hotel_list(hotelslist.cities.selectedIndex);loadHotel();">
          <option value="Baddeck">Baddeck</option>
          <option value="Banff">Banff</option>
        </select>
    <select id="hotelnames" name="hotelnames" onChange="loadHotel();">
          <option value="Inverary Resort, Baddeck">Inverary Resort, Baddeck</option>
        </select>
      </form>

<iframe name="hotelframe" id="hotelframe" src="http://www.google.com" scrolling="no" width="660" height="1000" marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0"> <p>Your browser does not support iframes.</p> </iframe>

below is my javascript functions
Code:

function loadHotel() { 
    var destURL = document.hotelslist.hotelnames.options[document.hotelslist.hotelnames.selectedIndex].value; 
		window.frames["hotelframe"].location = destURL; }

var i;
function hotel_list(i){
var hotelslist = document.getElementById("hotelslist");
	hotelslist.hotelnames.options.length=0;
	
switch(i)
{	
case 0: //Baddeck
hotelslist.hotelnames.options[0] =new  Option('Inverary Resort, Baddeck','http://www.test0.com');
break;
case 1: //Banff
hotelslist.hotelnames.options[0] =new  Option('Banff Caribou Lodge & Spa','http://www.test1.com');
hotelslist.hotelnames.options[1] =new  Option('Banff Ptarmigan Inn','http://www.test2.com');
hotelslist.hotelnames.options[2] =new  Option('Banff Rocky Mountain Resort','http://www.test3.com');
hotelslist.hotelnames.options[3] =new  Option('The Rimrock Resort','http://www.test4.com');
hotelslist.hotelnames.options[4] =new  Option('Fairmont Banff Springs','http://www.test5.com/');
break;
}
}

can some one please advise on a cross browser solution?

thanks in advance.
Omar.

I am using a web tracking tool called REinvigorate, which is great but doesn't give you the ability to exclude specific referring domains from the stats. However, their support guy told me that I can accomplish this by referencing the referring domain in a small script that only calls the tracking code when the referring site is not "This one we don't want in our stats". I only know C# and SQL, though, so I'm not entirely sure how to do this. Is this right? spreecommerce.com is the domain we want to exclude...


<script type="text/javascript">
if (document.referrer.search("/spreecommerce/") != -1) {
document.getElementById('iFrameId').src = '<trackingcode>';
}
</script>


Thanks!
Austin

Hi:

I am having an issue that is quite strange. I have some javascript included into a page. It is working perfectly on one website. I duplicated the exact page to another domain and it wont work there at all. I have verfied that the html and javascript are exactly identical on both sites. Please help.

Note: Both sites are defined in IIS on the same server.
Also both sites directories are on the same server.

Code:

<link rel="stylesheet" href="http://jqueryui.com/themes/base/jquery.ui.all.css">
	<script src="http://jqueryui.com/jquery-1.4.4.js"></script>
	<script src="http://jqueryui.com/ui/jquery.ui.core.js"></script>
	<script src="http://jqueryui.com/ui/jquery.ui.widget.js"></script>

	<script src="http://jqueryui.com/ui/jquery.ui.accordion.js"></script>
	
	<script>
	    $(function () {
	        $("#accordion").accordion();
	    });
	</script>

My source :

Code:

<html>
<head>
<title></title> 
<script type="text/javascript">
function runcode(cwin)
{ 
   cwin.location.replace("javascript:alert("Loaded complete")");
}
function newtab()
{
   win=window.open("http://www.google.com");
   setTimeout("runcode(win)",5000);
   setTiemout("win.close()",7000);
}
</script>
</head>
<body>
<input type="button" value="Click to open newtab" onclick="newtab()" />
</body>
</html>

I want after newtab is opened 5s, alert window will be opened with message:"Loaded complete". Then 2s it is closed. But it isn't what I expect. Please fix it for me. Thanks in advance!