How to get Rid of the JSON Error in Firefox - php

Question

My Response Header is
Access-Control-Allow-Meth... GET, POST
Access-Control-Allow-Orig... *
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection Keep-Alive
Content-Length 81
Content-Type text/html
Date Mon, 26 Aug 2013 06:35:53 GMT
Expires Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive timeout=5, max=99
Pragma no-cache
Server Apache/2.4.3 (Win32) OpenSSL/1.0.1c PHP/5.4.7
X-Powered-By PHP/5.4.7`
And The Request Header is
Accept application/json, text/javascript, */*; q=0.01
Accept-Encoding gzip, deflate
Accept-Language en-US,en;q=0.5
Cache-Control no-cache
Connection keep-alive
Content-Length 31
Content-Type application/x-www-form-urlencoded; charset=UTF-8
Cookie USERNAMEEMAIL=shan%40atlos.com; PHPSESSID=8asm46iltcqc9oahsbaaap1c16
Host localhost
Pragma no-cache
Referer http://localhost/test/
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0
X-Requested-With XMLHttpRequest`
i am getting error in firefox "Not Well Formed" what is the problem in this.
i am getting the data correctly in json form but it show also error that is very annoying
Java Script Code to Make Request
GetTopNotification
And Uses a Class for make Ajax Request is
Workspace

Answer 1

Your reponse-header is incorrect.
if(headers_sent()) die('Should not output data before json');
header('Content-type: application/json');
echo json_encode($data_for_json);
exit;
Also, nothing should be sent before the json, and nothing after it either.
In response to comment below:
Somewhere in your php-code you're outputting json. However, as stated, your reponse header is incorrect: the Content-type part should be set to application/json; the above code does just that. A line-by line walktrough:
Checks if you did not already send anything and die if you did
Set the Content-type part of your response header to the appropriate mime-type
Output the json (as it currently is, should be fine)
exit;
More update irt comments
You're creating your json string manually: something i can wholeheartedly advice against, use an array or object and then use json_encode to create you json.
I also added output_buffering over your code, just in case.
Give it a try, new code is here
Update three
In work-space.js Replace this line
self.responseValue = self.getValueFromResponse( jqXHR );
With this
if(type != 'xml') self.responseValue = data;
else self.responseValue = self.getValueFromResponse( jqXHR );
save it, clear the cache, and try again.