For two documents to be considered to have the same origin, the protocol (http/https), the domain and the port (the default 80 or :xx) have to be indentical.
So no, you cannot use xhr against a different port.


And what kind of alternative strategies do you use for avoiding LazyLoadExceptions?


I do understand that open session in view has issues with:

 - Layered applications running in different jvm&#39;s
 - Transactions are committed only at the end, and most probably you would like the results before.
 
But, if you know that your application is running on a single vm, why not ease your pain by using an open session in view strategy?



Why is Hibernate Open Session in View considered a bad practice?

I have a multi-modules project, like this one:

    main-project/
        module1/
        module2/
            sub-module1/
            sub-module2/
            sub-module3/
            ...
        module3/
        module4/
        ...

I need to define a set of properties (that are dependent of the environment on which I want to release my project) in Maven2.
I will not use `&lt;properties&gt;` as there is lots of properties...
Thus, I use the [Properties Maven2 plugin][1].

The properties files are located in the `main-project/` directory.
How can I set the correct directory in the main pom.xml, in order to specify to any children where to find the properties file?

    &lt;plugin&gt;
        &lt;groupId&gt;org.codehaus.mojo&lt;/groupId&gt;
        &lt;artifactId&gt;properties-maven-plugin&lt;/artifactId&gt;
        &lt;version&gt;1.0-alpha-1&lt;/version&gt;
        &lt;executions&gt;
            &lt;execution&gt;
                &lt;phase&gt;initialize&lt;/phase&gt;
                &lt;goals&gt;
                    &lt;goal&gt;read-project-properties&lt;/goal&gt;
                &lt;/goals&gt;
                &lt;configuration&gt;
                    &lt;files&gt;
                        &lt;file&gt;???/env_${env}.properties&lt;/file&gt;
                    &lt;/files&gt;
                &lt;/configuration&gt;
            &lt;/execution&gt;
        &lt;/executions&gt;
    &lt;/plugin&gt;

If I set only `&lt;file&gt;env_${env}.properties&lt;/file&gt;`, then when Maven2 compiles the first module, it will not find the `main-project/env_dev.properties` file. If I set `&lt;file&gt;../env_${env}.properties&lt;/file&gt;`, then an error will be raised at the parent level, or at any sub-module level...



  [1]: http://mojo.codehaus.org/properties-maven-plugin

Maven2 property that indicates the parent directory

Can XMLHttpRequest send a request to http:// mydomain.com:81/ from http:// mydomain.com/ ?

Are different ports on the same server considered cross-domain? (Ajax-wise)

<p>Can XMLHttpRequest send a request to http:// mydomain.com:81/ from http:// mydomain.com/ ?</p>


Having trouble with what I thought was a relatively simple jQuery plugin...

The plugin should fetch data from a php script via ajax to add options to a `&lt;select&gt;`.  The ajax request is pretty generic:

    $.ajax({
      url: o.url,
      type: &#39;post&#39;,
      contentType: &quot;application/x-www-form-urlencoded&quot;,
      data: &#39;{&quot;method&quot;:&quot;getStates&quot;, &quot;program&quot;:&quot;EXPLORE&quot;}&#39;,
      success: function (data, status) {
        console.log(&quot;Success!!&quot;);
        console.log(data);
        console.log(status);
      },
      error: function (xhr, desc, err) {
        console.log(xhr);
        console.log(&quot;Desc: &quot; + desc + &quot;\nErr:&quot; + err);
      }
    });

This seems to work fine in Safari.  In Firefox 3.5, the `REQUEST_TYPE` on the server is always &#39;OPTIONS&#39;, and the $_POST data does not appear.  Apache logs the request as type &#39;OPTIONS&#39;:

    ::1 - - [08/Jul/2009:11:43:27 -0500] &quot;OPTIONS sitecodes.php HTTP/1.1&quot; 200 46

Why would this ajax call work in Safari, but not Firefox, and how do I fix it for Firefox?

&lt;pre&gt;
Response Headers
Date: Wed, 08 Jul 2009 21:22:17 GMT
Server:Apache/2.0.59 (Unix) PHP/5.2.6 DAV/2
X-Powered-By: PHP/5.2.6
Content-Length	46
Keep-Alive	timeout=15, max=100
Connection	Keep-Alive
Content-Type	text/html

Request Headers
Host	orderform:8888
User-Agent	Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1) Gecko/20090624 Firefox/3.5
Accept	text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language	en-us,en;q=0.5
Accept-Encoding	gzip,deflate
Accept-Charset	ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive	300
Connection	keep-alive
Origin	http://ux.inetu.act.org
Access-Control-Request-Method	POST
Access-Control-Request-Headers	x-requested-with
&lt;/pre&gt;

Here is a picture of the Firebug output:

![][1]


  [1]: http://i.stack.imgur.com/Tid8P.jpg

jQuery $.ajax(), $.post sending &quot;OPTIONS&quot; as REQUEST_METHOD in Firefox

My site uses http and https protocol; it doesn&#39;t affect the content. My site uses jQuery ajax calls, which fills some areas on the page, too. 

Now, I would like to do all ajax calls over https. (please dont ask me why :)) 
When I am on a page with https protocol, ajax requests are working.
When I&#39;m on a page with http protocol, I get a javascript error: 
Access to restricted URI denied

I know that this is a cross domain problem (in fact, it&#39;s a cross protocol problem), and I know that I should use the same protocol in ajax calls as on the current page.

Still, I want to all ajax calls to be https, and call them on a page that was served over http.
Is there any workaround to achieve this (some json/proxy solution?), or is it simply impossible?

Ajax using https on an http page

I&#39;m trying to set the Accept HTTP header to &quot;text/xml&quot; with this jquery code:

    $.ajax({
        beforeSend: function(req) {
            req.setRequestHeader(&quot;Accept&quot;, &quot;text/xml&quot;);
        },
        type: &quot;GET&quot;,
        url: &quot;[proper url]&quot;,
        contentType: &quot;text/plain; charset=utf-8&quot;,
        dataType: ($.browser.msie) ? &quot;text&quot; : &quot;xml&quot;,
        username: &#39;---&#39;,
        password: &#39;-------&#39;,            				    
        success: function(data) {
            var xml;
            if (typeof data == &quot;string&quot;) {
                alert(&quot;Data is string:&quot; + data);
                xml = new ActiveXObject(&quot;Microsoft.XMLDOM&quot;);
                xml.async = false;
                xml.loadXML(data);
            } else {
                xml = data;
                alert(&quot;Data is not string:&quot; + $(xml).text());
            }
            // Returned data available in object &quot;xml&quot;
            //alert(&quot;Status is: &quot; + xml.statusText);
            $(&quot;#ingest_history&quot;).html($(xml).text());
        }			   
    });

In firefox it works great.

But in IE, the value that I am trying to set for the Accept header seems to get appended onto the end so it becomes: `Accept: */*, text/xml`.  This causes my ajax call to return the html version as opposed to the xml version which I want.

Does anybody know how to properly set/clear the Accept header in IE 8?

Updated: For some reason the asterisks weren&#39;t appearing as I entered them.  The Accept Header in IE appears to be: `Accept: */*, text/xml`.

Cannot properly set the Accept HTTP header with jQuery

I have some ajax calls on the document of a site that display or hide a progress bar depending on the ajax status 

      $(document).ajaxStart(function(){ 
    		$(&#39;#ajaxProgress&#39;).show(); 
    	});
      $(document).ajaxStop(function(){ 
    		$(&#39;#ajaxProgress&#39;).hide(); 
    	});

I would like to basically overwirte these methods on other parts of the site where a lot of quick small ajax calls are made and do not need the progress bar popping in and out. I am trying to attach them to or insert them in other $.getJSON and $.ajax calls. I have tried chaining them but apparently that is no good.

    $.getJSON().ajaxStart(function(){ &#39;kill preloader&#39;});

How to call .ajaxStart() on specific ajax calls

JavaScript code I&#39;m starting with:  

    function doSomething(url) {  
       $.ajax({
          type: &quot;GET&quot;,  
          url: url,  
          dataType: &quot;xml&quot;,  
	      success: rssToTarget  
       });  
    }    

Pattern I would like to use:

    //where elem is the target that should receive new items via DOM (appendChild)
    function doSomething(url, elem) {
       $.ajax({
          type: &quot;GET&quot;,
          url: url,
          dataType: &quot;xml&quot;,
	      success: rssToTarget(elem)
       });
    }  

I don&#39;t think I can get the callback to work this way, right? What is the proper pattern? I don&#39;t want to use global variables necessarily to temporarily hold the `elem` or elem name.

jQuery / Ajax - $.ajax() Passing Parameters to Callback - Good Pattern to Use?

On my site I would like to allow users to sign in with a google account. I plan to use openid but I would like to allow signing in with google because it has more benefits. I&#39;ve noticed in the past a few sites that have the ability to sign in with a google (gmail) account and IIRC  though they did NOT support openID (but I could be wrong).

How do I implement &#39;sign in with google&#39;?

How do I implement ‘sign in with google’ on my site?

Is there a way to allow multiple cross-domains using the `Access-Control-Allow-Origin` header?

I&#39;m aware of the `*`, but it is too open. I really want to allow just a couple domains.

As an example, something like this:

    Access-Control-Allow-Origin: http://domain1.example, http://domain2.example

I have tried the above code but it does not seem to work in Firefox.

Is it possible to specify multiple domains or am I stuck with just one?

Access-Control-Allow-Origin Multiple Origin Domains?

How can you handle errors in a getJSON call? Im trying to reference a cross-domain script service using jsonp, how do you register an error method? 

Error handling in getJSON calls

According to [Requests with credentials][1], Firefox will only send credentials along with cross-domain posts if 

`invocation.withCredentials = &quot;true&quot;;` 

is set… But it doesn&#39;t seem like jQuery&#39;s Ajax API provides any mechanism for this.

Is there something I&#39;ve missed? Is there some other way I can do it?


  [1]: https://developer.mozilla.org/en/HTTP_access_control#Requests_with_credentials

Sending credentials with cross-domain posts?

Did I not get enough sleep or what? This following code

    var frame=document.getElementById(&quot;viewer&quot;);
    frame.width=100;
    frame.height=100;

    var ctx=frame.getContext(&quot;2d&quot;);
    var img=new Image();
    img.src=&quot;http://www.ansearch.com/images/interface/item/small/image.png&quot;
    
    img.onload=function() {
        // draw image
        ctx.drawImage(img, 0, 0)
      
        // Here&#39;s where the error happens:
        window.open(frame.toDataURL(&quot;image/png&quot;));
    }

is throwing this error: 

    SECURITY_ERR: DOM Exception 18

There&#39;s no way this shouldn&#39;t work! Can anyone explain this, please?

Content Type	Original Author	Original Content on Stackoverflow
Question	Sause	View Question on Stackoverflow
Solution 1 - Ajax	Sean Kinsey	View Answer on Stackoverflow

Are different ports on the same server considered cross-domain? (Ajax-wise)

Ajax Problem Overview

Ajax Solutions

Solution 1 - Ajax

Maven2 property that indicates the parent directory

Why is Hibernate Open Session in View considered a bad practice?

Attributions