Remove these two lines:

    xmlHttp.setRequestHeader(&quot;Content-length&quot;, params.length);
    xmlHttp.setRequestHeader(&quot;Connection&quot;, &quot;close&quot;);

XMLHttpRequest isn&#39;t allowed to set these headers, they are being set automatically by the browser. The reason is that by manipulating these headers you might be able to trick the server into accepting a second request through the same connection, one that wouldn&#39;t go through the usual security checks - that would be a security vulnerability in the browser.

Section 4.6.2 of the W3C XMLHttpRequest Level 1 spec lists headers that &quot;are controlled by the user agent&quot; and not allowed to be set with the setRequestHeader() method. Both Connection and Content-length are in that list.

    Accept-Charset
    Accept-Encoding
    Access-Control-Request-Headers
    Access-Control-Request-Method
    Connection
    Content-Length
    Cookie
    Cookie2
    Date
    DNT
    Expect
    Host
    Keep-Alive
    Origin
    Referer
    TE
    Trailer
    Transfer-Encoding
    Upgrade
    User-Agent
    Via

With this class

    @Component
    public class Sample {
    
        @Value(&quot;${my.name}&quot;)
    	public static String name;
    	
    
    }

If I try `Sample.name`, it is always &#39;null&#39;. So I tried this.

    public class Sample {
    
    	public static String name;
    	
    	@PostConstruct
    	public void init(){
    		name = privateName;
    	}
    
    	@Value(&quot;${my.name}&quot;)
    	private String privateName;
    	
    	public String getPrivateName() {
    		return privateName;
    	}
    
    	public void setPrivateName(String privateName) {
    		this.privateName = privateName;
    	}  

    }

This code works. `Sample.name` is set properly. Is this good way or not? If not, is there something more good way? And how to do it?

Spring: How to inject a value to static field?

Android SDK documentation says that `startManagingCursor()` method is depracated:

&gt; This method is deprecated. Use the new CursorLoader class with LoaderManager instead; this is also available on older platforms through the Android compatibility package. This method allows the activity to take care of managing the given Cursor&#39;s lifecycle for you based on the activity&#39;s lifecycle. That is, when the activity is stopped it will automatically call deactivate() on the given Cursor, and when it is later restarted it will call requery() for you. When the activity is destroyed, all managed Cursors will be closed automatically. If you are targeting HONEYCOMB or later, consider instead using LoaderManager instead, available via getLoaderManager()

So I would like to use `CursorLoader`. But how can I use it with custom `CursorAdapter` and without `ContentProvider`, when I needs URI in constructor of `CursorLoader`?

CursorLoader usage without ContentProvider

I have the following custom ajax function that posts data back to a PHP file. Everytime the post of data happens I get the following two errors : 

&gt; **Refused to set unsafe header &quot;Content-length&quot;&lt;Br&gt;
&gt; Refused to set unsafe header &quot;Connection&quot;**

Code : 

    function passposturl(url1, params, obj)
    {
        //url1 = url1+&quot;&amp;sid=&quot;+Math.random();
        xmlHttp = get_xmlhttp_obj();
        xmlHttp.loadflag = obj;
        xmlHttp.open(&quot;POST&quot;, url1, true);
        //alert(url1);
        //alert(params);
        //alert(obj);
        //alert(params.length);
        xmlHttp.setRequestHeader(&quot;Content-type&quot;, &quot;application/x-www-form-urlencoded&quot;);
        xmlHttp.setRequestHeader(&quot;Content-length&quot;, params.length);
        xmlHttp.setRequestHeader(&quot;Connection&quot;, &quot;close&quot;);
        xmlHttp.onreadystatechange = function ()
        {
            stateChanged(xmlHttp);
        };
        xmlHttp.send(params);
     }

What am I doing wrong?


AJAX post error : Refused to set unsafe header &quot;Connection&quot;

I have the following custom ajax function that posts data back to a PHP file. Everytime the post of data happens I get the following two errors :
> Refused to set unsafe header "Content-length" 
> Refused to set unsafe header "Connection"
Code :
<pre><code class="hljs language-ini">function passposturl(url1, params, obj)
{
 //url1 = url1+"&#x26;sid="+Math.random();
 xmlHttp = get_xmlhttp_obj();
 xmlHttp.loadflag = obj;
 xmlHttp.open("POST", url1, true);
 //alert(url1);
 //alert(params);
 //alert(obj);
 //alert(params.length);
 xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
 xmlHttp.setRequestHeader("Content-length", params.length);
 xmlHttp.setRequestHeader("Connection", "close");
 xmlHttp.onreadystatechange = function ()
 {
 stateChanged(xmlHttp);
 };
 xmlHttp.send(params);
 }
</code></pre>
What am I doing wrong?

I&#39;ve noticed the order of elements in a JSON object not being the original order.

What about the elements of JSON lists? Is their order maintained?


Is the order of elements in a JSON list preserved?

Python and JavaScript both allow developers to use or to omit semicolons. However, I&#39;ve often seen it suggested (in books and blogs) that I should not use semicolons in Python, while I should always use them in JavaScript.

Is there a technical difference between how the languages use semicolons or is this just a cultural difference?

What is the difference between semicolons in JavaScript and in Python?

I want to pass value to `remoteCommand` from javascript. If this is possible, how can I do that and how can I receive them in the backing bean?



Pass parameter to p:remoteCommand from JavaScript

Reading through the [ECMAScript 5.1 specification](http://www.ecma-international.org/ecma-262/5.1/#sec-8.5), `+0` and `-0` are distinguished.

Why then does `+0 === -0` evaluate to `true`?

Are +0 and -0 the same?

How can I convert a string either like &#39;helloThere&#39; or &#39;HelloThere&#39; to &#39;Hello There&#39; in JavaScript?

Convert camelCaseText to Title Case Text

How long can the browser wait before an error is shown before server answers for request? Can this time be unlimited?

How long will the browser wait after an ajax request?

I&#39;ve checked out tons of tutorials for django AJAX forms, but each one of them tells you one way of doing it, none of them is simple and I&#39;m a bit confused since I&#39;ve never worked with AJAX.

I have a model called &quot;note&quot;, a modelform for it, and inside the template I need that everytime a note element sends the stop() signal (from jQuery Sortables) django updates the object.

My current code:

**views.py**

    def save_note(request, space_name):
    
        &quot;&quot;&quot;
        Saves the note content and position within the table.
        &quot;&quot;&quot;
        place = get_object_or_404(Space, url=space_name)
        note_form = NoteForm(request.POST or None)
            
        if request.method == &quot;POST&quot; and request.is_ajax:
            msg = &quot;The operation has been received correctly.&quot;          
            print request.POST
    
        else:
            msg = &quot;GET petitions are not allowed for this view.&quot;
            
        return HttpResponse(msg)

**JavaScript:**

    function saveNote(noteObj) {
        /*
            saveNote(noteObj) - Saves the notes making an AJAX call to django. This
            function is meant to be used with a Sortable &#39;stop&#39; event.
            Arguments: noteObj, note object.
        */
        var noteID = noteObj.attr(&#39;id&#39;);
        
        $.post(&quot;../save_note/&quot;, {
            noteid: noteID,
            phase: &quot;Example phase&quot;,
            parent: $(&#39;#&#39; + noteID).parent(&#39;td&#39;).attr(&#39;id&#39;),
            title: $(&#39;#&#39; + noteID + &#39; textarea&#39;).val(),
            message: &quot;Blablbla&quot;,
        });
    }

The current code gets the data from the template and prints it in the terminal. I don&#39;t know how I can manipulate this data. I&#39;ve seen some people manages the data through jqueryforms to send the data to django.

How can I access the data sent by AJAX and update the note object?

How to POST a django form with AJAX &amp; jQuery

I&#39;m using KnockoutJS and have a main view and view model. I want a dialog (the jQuery UI one) to popup with another view which a separate child view model to be bound to.

The HTML for the dialog content is retrieved using AJAX so I want to be able to call `ko.applyBindings` once the request has completed, and I want to bind the child view model to just the portion of the HTML loaded via ajax inside the dialog div.

Is this actually possible or do I need to load ALL my views and view models when the page initially loads and then call `ko.applyBindings` once?

Can you call ko.applyBindings to bind a partial view?

I am trying to post form values via AJAX to a php file.  How do I collect my form values to send inside of the &quot;data&quot; parameter?

	$.ajax({
			type: &quot;POST&quot;,
			data: &quot;submit=1&amp;username=&quot;+username+&quot;&amp;email=&quot;+email+&quot;&amp;password=&quot;+password+&quot;&amp;passconf=&quot;+passconf,
			url: &quot;http://rt.ja.com/includes/register.php&quot;,
			success: function(data)
			{	
				//alert(data);
				$(&#39;#userError&#39;).html(data);
				$(&quot;#userError&quot;).html(userChar);
				$(&quot;#userError&quot;).html(userTaken);
			}
		});

HTML:

    &lt;div id=&quot;border&quot;&gt;
      &lt;form  action=&quot;/&quot; id=&quot;registerSubmit&quot;&gt;
        &lt;div id=&quot;userError&quot;&gt;&lt;/div&gt;
          Username: &lt;input type=&quot;text&quot; name=&quot;username&quot; id=&quot;username&quot; size=&quot;10&quot;/&gt;&lt;br&gt;
          &lt;div id=&quot;emailError&quot; &gt;&lt;/div&gt;
          Email: &lt;input type=&quot;text&quot; name=&quot;email&quot; size=&quot;10&quot; id=&quot;email&quot;/&gt;&lt;br&gt;
          &lt;div id=&quot;passError&quot; &gt;&lt;/div&gt;
          Password: &lt;input type=&quot;password&quot; name=&quot;password&quot; size=&quot;10&quot; id=&quot;password&quot;/&gt;&lt;br&gt;
          &lt;div id=&quot;passConfError&quot; &gt;&lt;/div&gt;
          Confirm Password: &lt;input type=&quot;password&quot; name=&quot;passconf&quot; size=&quot;10&quot; id=&quot;passconf&quot;/&gt;&lt;br&gt;
          &lt;input type=&quot;submit&quot; name=&quot;submit&quot; value=&quot;Register&quot; /&gt;
      &lt;/form&gt;
    &lt;/div&gt;


jQuery - Getting form values for ajax POST

this is my javascript:

		function getWeather() {
			$.getJSON(&#39;getTemperature/&#39; + $(&#39;.data option:selected&#39;).val(), null, function(data) {
				alert(&#39;Success&#39;);								
			});
		}


this is my controller:


    @RequestMapping(value=&quot;/getTemperature/{id}&quot;, headers=&quot;Accept=*/*&quot;, method = RequestMethod.GET)
    @ResponseBody
    public Weather getTemparature(@PathVariable(&quot;id&quot;) Integer id){
    	Weather weather = weatherService.getCurrentWeather(id);
    		return weather;
    }


spring-servlet.xml

    &lt;context:annotation-config /&gt;
    &lt;tx:annotation-driven /&gt;


Getting this error:

    GET http://localhost:8080/web/getTemperature/2 406 (Not Acceptable)


Headers:

**Response Headers**

    Server	Apache-Coyote/1.1
    Content-Type	text/html;charset=utf-8
    Content-Length	1070
    Date	Sun, 18 Sep 2011 17:00:35 GMT


**Request Headers**

    Host	localhost:8080
    User-Agent	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2
    Accept	application/json, text/javascript, */*; q=0.01
    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
    Connection	keep-alive
    X-Requested-With	XMLHttpRequest
    Referer	http://localhost:8080/web/weather
    Cookie	JSESSIONID=7D27FAC18050ED84B58DAFB0A51CB7E4




Interesting note:

**I get 406 error, but the hibernate query works meanwhile.**
This is what tomcat log says, everytime when I change selection in dropbox:

     select weather0_.ID as ID0_0_, weather0_.CITY_ID as CITY2_0_0_, weather0_.DATE as DATE0_0_, weather0_.TEMP as TEMP0_0_ from WEATHER weather0_ where weather0_.ID=?



What could the problem be? There were two similar questions in SO before, I tried all the accepted hints there, but they did not work I guess...

Any suggestions? Feel free to ask questions...

Content Type	Original Author	Original Content on Stackoverflow
Question	sniper	View Question on Stackoverflow
Solution 1 - Javascript	Wladimir Palant	View Answer on Stackoverflow
Solution 2 - Javascript	superboy1984	View Answer on Stackoverflow

AJAX post error : Refused to set unsafe header "Connection"

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

CursorLoader usage without ContentProvider

Spring: How to inject a value to static field?

Attributions