Re: status 0 and textResponse empty in XMLHttpRequest

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Message-ID	<12141021.utq7MnS4Tl@PointedEars.de> (permalink)
From	Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To	Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
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Subject	Re: status 0 and textResponse empty in XMLHttpRequest
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irshadjd wrote:

> every time i am getting Text Response empty in any browser
> any one could help me

<http://PointedEars.de/faq#javascriptErrors>

> var url = "http://www.youtube.com/";
> var xmlhttp = new XMLHttpRequest();
> 
> xmlhttp.open("GET", url);
> xmlhttp.setRequestHeader("User-Agent",navigator.userAgent);

| Refused to set unsafe header "User-Agent"

>  // subscribe to this event before you send your request.
>  xmlhttp.onreadystatechange=function() {
>   alert(xmlhttp.status);

You should be using console.log() here as well, because alert() blocks 
execution.

The fact that you are only seeing this one time, and that it displays 0 
means that the readyState never changes from 0 to 1.  IOW, the request is 
not even made.

>   if (xmlhttp.readyState==4 ) {
>    //alert the user that a response now exists in the responseTest
>    property. alert(xmlhttp.responseText);

See above.  And keep your posted lines to 78 characters at maximum (to allow 
for one quotation level; less for more).  The source code alternative (that 
I recommmend) is to use *multi-line* comments for documentation and write 
semicolons *always*.  That way code will continue to work even if wrapped.

Not using the borken and spammed Google Groups Web interface is helping with 
that.

>    // And to view in firebug
>    console.log('xhr',xmlhttp)
>   }
>  }
> xmlhttp.send()

| XMLHttpRequest cannot load http://www.youtube.com/. Origin
| […] is not allowed by Access-Control-Allow-Origin.

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.

Thread

status  0 and textResponse empty in  XMLHttpRequest irshadjd <mohdirshadmi4@gmail.com> - 2013-10-14 04:05 -0700
  Re: status  0 and textResponse empty in  XMLHttpRequest Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2013-10-14 13:28 +0200
  Re: status  0 and textResponse empty in  XMLHttpRequest Hans-Georg Michna <hans-georgNoEmailPlease@michna.com> - 2013-10-14 16:04 +0200
  Re: status  0 and textResponse empty in  XMLHttpRequest Danny <dann90038@gmail.com> - 2013-10-14 10:32 -0700
    Re: status  0 and textResponse empty in  XMLHttpRequest JJ <duh@nah.meh> - 2013-10-15 15:44 +0700
      Re: status  0 and textResponse empty in  XMLHttpRequest dhtml <dhtmlkitchen@gmail.com> - 2013-10-16 09:47 -0700

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